Davitily Development Blog

12/3/11

2011-12-03T13:29:00.000-08:00

Problems Added
---------------------------------
Distribute and Evaluate
Inverse Variation (find k)
Inverse Variation
Direct Variation (find k)
Direct Variation
Represent sets using a Venn diagram (smaller multiple choice answers)

Problems Improved
---------------------------------
Find the ordered pair

Features Added
---------------------------------
Sort documents by name in manage folders
Add folder menu follows you as you scroll
Help video for shuffling problems and multiple choice all on and off

11/4/11

2011-11-04T09:12:00.000-07:00

Problems Added
-------------------------------
Derive sets from a Venn diagram
Represent sets using a Venn diagram
Associative property (addition)
Commutative property (addition)
Solving equations with the distributive property (first step)
Set operations
Convert miles to kilometers
Convert kilometers to miles
Convert centimeters to inches
Convert inches to centimeters
Ellipse word problem (Orbit)

9/6/11

2011-09-06T22:38:00.000-07:00

New Problems
----------------------
-Directrix of a Parabola
-Focus ofa Parabola
-Find the sum of an infinite geometric series
-Find the number of terms in a geometric sequence
-Find the number of terms in an arithmetic sequence
-Ellipse word problem (Keplers Formula)

New Features
----------------------
-Add folders to existing folder without typing name

8/3/11

2011-08-03T06:58:00.001-07:00

New Problems
Area of a regular hexagon (given apothem and length)
Area of a regular pentagon (given apothem and length)
Area of a regular triangle (given apothem and length)
Area of a regular pentagon (given length)
Area of a regular hexagon (given length)
Area of a regular triangle (given length)
Matrix word problem
Alternate interior angles (Solving for x) II
Alternate exterior angles (Solving for x) II
Corresponding angles (Solving for x) II
Write a recursive formula for an arithmetic sequence
Write an explicit formula for a geometric sequence
Write a recursive formula for a geometric sequence
Graph a step function
Make a bar graph given when data
Find the length of a triangle base when given the midsegment
Complex number word problem

Features
Ability to create folders

6-18-11

2011-06-18T18:48:00.000-07:00

Problems Added
---------------------------
* Dividing fractions without negative numbers
* Single-step equations with mixed numbers and fractions
* Find the x and y intercept given a graph
* Simple solving similar triangles sides
* Trapezoid median with variables
* XY table problem from an equation
* Midsegment and base relationship of a triangle
* Explicit formula for arithmetic series

5-5-11

2011-05-05T13:35:00.001-07:00

Problems Added:
-Read a Piecewise-Linear function.
-Calculate the x-intercept of an equation given in slope-intercept form.
-Percent remaining word problem.
-Proportion word problem (height and shadow)
-Graph a line given an equation in slope-intercept form (no fractions).
-Solving two-step equations (simple values no negatives).
-Solving single-step equations by subtraction (1-digit no negatives)
-Solving single-step equations by multiplication (1-digit no negatives)
-Solving single-step equations by division (simple values no negatives)
-Multiplying a whole number and a fraction

Problems Improved:
-Triangle Proofs Smaller

New Features:
- 2 Column Vertical Order Print/PDF
- Expiration Date for Online Test
- Access to our Tutorial Files

4/3/11

2011-04-03T13:44:00.001-07:00

Problems Added
----------------
Analyze a Piecewise-Linear function
Mode (no mode added)
Slope word problem (ramp)
Vertical and Supplementary angles (simple)
Ratio word problem II
Multiplying decimals (10x)
Simple multiplication II

Problems Improved
----------------
Mode
Mode Word Problems
Solve a system by graphing
Multiplying decimals (10x)

3/6/11

2011-03-06T16:04:00.001-08:00

Problems Added
---------------------------
Bar graphs (smaller).
Line graphs (smaller).
Find the missing angle in a isosceles triangle (Diagram).
Graphing radicals
Graph an inequality with a radical
Corresponding angles (Solving for x).
Alternate interior angles (Solving for x).
Alternate exterior angles (Solving for x).
Graph a line given an equation in slope-intercept form (includes undefined lines).
Overall average word problem

Problems Improved
---------------------------
Mode word problem.
Bar graphs.

2/9/11

2011-02-09T08:41:00.001-08:00

Problems Added
-Solving equations with inequalities and absolute values.
-Solving for a variable in terms of other variables.
-Simple Percent word problem (find the tax).
-Adding fractions with uncommon denominators (1 digit).

Problems Improved
-Similar triangles.
-Write a number in standard form.

New Features
-Option to randomize problem number order.

1-13-11

2011-01-13T13:18:00.000-08:00

New Problems
-Solving single-step equations by addition or subtraction (variable on the right).
-Solving single-step equations by division (variable on the right).
-Solving single-step equations by multiplication (variable on the right).
-Solving two-step equations (variable on the right).
-Simple division with zeros (no remainder).
-Solve an equation with a radical III.

New Features
-Ability to create your own login for online testing
-Dividing decimals by decimals II.

12/5/10

2010-12-05T19:01:00.000-08:00

Problems Added
---------------------
Linear Programming.
Scale factor and area ratio word problem.
Estimating sums.
Estimating differences.
Estimating products.
Estimating quotients.

Problems Improved
-------------------
Adding fractions using the commutative and associative properties.
Using the distributive property

11/3/10

2010-11-03T15:38:00.000-07:00

Problems Added
-----------------------
- Solving equations with the distributive property and by combining like terms.
- Length, perimeter, and area ratio word problem.
- Segments formed by 2 chords.

Problems Improved
-----------------------
- Domain and range of a graph.
- Combining like terms and evaluating expressions.

10/5/10

2010-10-05T13:53:00.000-07:00

Problems Added

----------------------------------

- Writing numbers as products of primes using exponents.

- Solving with variables on both sides (1-digit).

- Solving equations with the distributive property and by combining like terms.

- Using the distributive property (2 variables).

- Find the missing angle in a triangle (Diagram).

- Similar polygons word problem

- Angles formed by 2 chords.

Problems Improved

----------------------------------

- Evaluate a term with an exponent.

- Simplifying ratios.

8-31-10

2010-08-31T21:20:00.001-07:00

Problems Added

- External angles formed by secants.

- Find the measure of each internal angle of a regular polygon.

- Find the measure of each external angle of a regular polygon.

- Solving single-step equations by subtraction (1-digit).

- Solving single-step equations by addition (1-digit).

- Geometric mean.

6-13-10

2010-06-13T05:54:00.000-07:00

Problems Added
-Solving polynomials by factoring III
-Subtracting integers word problem
-Dividing decimals (10x)
-Reverse mean word problem (whole numbers)
-Combining like terms and evaluating expressions
-Given the area of a square, find the length of each side
-Given the perimeter of a square, find the length of each side

Problems Improved
-Reverse mean word problem
-Domain and range of a graph

5-7-10

2010-05-07T09:56:00.001-07:00

Problems Added
-Given the circumference of a circle, find the radius
-Given the circumference of a circle, find the radius
-Probability word problem (with replacement)
-Similar Triangles IV
-Find a fraction of a number
-Find what fraction
-Find a number given a fraction of it
-Mean word problem
-Median word problem
-Mode word problem
-Convert a Roman Numeral to a Standard Number
-Convert to a Roman Numeral
-Simple Percent word problem (percent of)
-Simple Percent word problem (find the whole)
-Simple Percent word problem (find the percent)

Problems Improved
-Adding and Subtracting Polynomials

New Features
-Documents can be sorted by name date added or name

4/06/2010

2010-04-06T21:45:00.001-07:00

Problems Added
-Converses of statements
-If-Then statements
-Stem and leaf graphs
-Surface area of a triangular prism
-Volume of a triangular prism
-Find the greatest common factor of 2 numbers (GCF)
-Find a slope that is parallel or perpendicular to a line
-Work Rate Problem I
-Work Rate Problem II
-Solving equations with absolute values II
-Solving polynomials by factoring I
-Solving polynomials by factoring II

Problems Improved
-Solving for x with 2 inequalities
-Identifying fractions
-Comparing expressions
-Multiplying polynomials
-Solving single-step equations by addition or subtraction word problem
-Dividing integers (1-digit)
-Factoring binomial squares

3-7-10

2010-03-07T08:48:00.000-08:00

Problems Added:
Create a Box-and-Whisker plot
Find the lengths of a triangle involving a median and centroid

Problems Improved:
Classify a triangle based on its sides
Mean
Division word problem
Classify the quadrilateral

New Features:
Sort documents by name and date

Tutorial Videos Added:
How to Find the Mode
How to Find the Median
How to Find the Mean
How to Solve a Pythagorean Word Problem
How to Find an Angle Using Corresponding Angles
How to Find an Angle Using Alternate Interior Angles

02-07-10

2010-02-07T13:23:00.001-08:00

Problems Added:
-Box and Whisker problem
-Find the mean (whole number answers)

Problems Improved:
-Division word problem
-Percent word problem

01-06-10

2010-01-06T10:07:00.000-08:00

Problems Added
- Factoring Word Problem
- Coordinate Translation
- Coordinate Rotation
- Coordinate Reflection
- Pythagorean Theorem I

Problems Improved
- Percents to Decimals
- Finding the Perimeter

New Features
- New Problem Menu with Preview

12-06-09

2009-12-06T22:03:00.000-08:00

Problems Added:
Literal expressions II.
Factoring two cubes.
Simple subtraction (1 digit).
Find the distance between two points using the distance formula.

Problems Improved:
Rounding decimals.

Rounding decimals.
FAQ Section.

10/2/09

2009-10-02T12:18:00.000-07:00

Problems Added
*Percent Word Problems involving sale and tax.
*Percent Word Problems where tax rate is to be solved.
*PH word problem.
*Simple fractional roots.
*Simple fractional negative roots.

Problems Improved
*Multiple choice improved for factorial problems.
*Choice of numbers are improved for problems involving pi.

Other Improvements
*Header alignment is improved for Online Test Taking

08/31/09

2009-08-31T15:13:00.000-07:00

Problems Added:
Easier version of Solving Single-step equations
Solving equations by combining like terms II.
Common sine and cosine values (degrees).
Common sine and cosine values (radians).
Simplifying radicals with variables.
Percent word problem I (sale).
Percent word problem I (tax).

Problems Improved:
Factoring binomial squares.

New Features:
Option for students to see their grades after taking an online test.

08-08-09

2009-08-08T08:34:00.000-07:00

Problems Added:
More Difference in Area Problems
Area of Combined Shapes

7/16/09

2009-07-16T17:17:00.000-07:00

Problems Added:
-Difference in Area (Rectangle and Circle).
-Difference in Area (Rectangle and Triangle).
-Difference in Area (Rectangles).
-Direct and indirect variation squared word problems.
-Direct and indirect variation word problems.
-Dividing polynomials II.
-Dividing polynomials III.
-Estimate a root.
-Rate word problems II.
-Rate word problems.
-Area of a Square.
-Area of a Rectangle.

5/30/09

2009-05-30T14:47:00.000-07:00

Problems:
- Easier version of similar triangles.
- Easier version of combining like terms.
- Easier version of solving proportions
- Separate perimeter problems.
- Binomial word problem involving flipping a coin.
- Percent word problem (multiple percents).
- Simplifying polynomials by factoring I.
- Simplifying polynomials by factoring II.
- Solve an equation with a radical.

Other:
- Help for sharing a copy of a document.

4/29/09

2009-04-29T09:21:00.000-07:00

Problems Added:
- Multiplying Mixed numbers and a Fraction.
- Solve system by combination (Simple Values).
- Easier Versions of Conversions.
- Solving 2-step eq. (Simple Values).
- Domain and Range of Graphs.

Problems Improved:
- Fixed multiple choice for Graphing inequalities on a number line.
- Fixed alignmnet for Domain of a function.
- Fixed image being cut off for Area of a square or rectangle.

New Features:
- Option to turn all problems to multiple choice.

4/1/09

2009-04-01T09:45:00.001-07:00

Problems Added:
*Multiplying mixed numbers and a whole number.
*Systems of equations word problem (money).
*Factoring difference of squares.
*Graphing an equation with absolute values
*Solving single-step equations by addition or subtraction II.

Problems Improved:
*Alignment fixed for Convert from common radians to degrees.

New Feature:
*Ability to share a copy of your documents with other users.

2/28/09

2009-02-28T14:16:00.000-08:00

Problems Added:
*Add 3 decimals.
*Graph 3 inequalities in slope-intercept form.
*Find the area of an ellipse.
*Estimate a root.
*Standard Deviation.
*Adding 3-4 Digits (1 Digit).
*Adding 3-4 Digits.
*Solving factored polynomials.

Problems Improved:
*Solve by Substitution I.
*Solve by Substitution II.
*Construct an angle bisector.

Features:
*Search function returns sorted results.

2-1-09

2009-02-01T12:45:00.001-08:00

Problems Added:
*Cosine word problem
*Sine word problem
*Multiplying roots.
*Graphing third and fourth order polynomials.
*Multiplying 3 fractions
*Adding 3 fractions with common denominators
*Adding 3 mixed numbers with common denominators
*Adding 3 fractions with uncommon denominators
*Adding 3 mixed numbers with uncommon denominators
*Sorting decimals.
*Sorting decimals and fractions.
*Sorting fractions.
*Solving right triangles *using sine.
*Solving right triangles using cosine.

New Features:
*"Submit" for take test online appears only on the last problem.
*Group accounts can now be created with the option of having 2 to 30 users. 5+ users have a discount of $11 per user per year. 20+ users have a discount of $10 per user per year.

1-15-09

2009-01-15T09:08:00.000-08:00

These are the current updates we have added to our website.

Problems Added:
*Solving a simple equation using imaginary numbers
*Multiplying imaginary numbers.
*Simplify to complex numbers. (addition)
*Simplify to complex numbers. (multiplication)
*Dividing integers (1-2 digits).
*Multiplying basic exponents.
*Dividing basic exponents (positive exponent answers).
*Dividing basic exponents.
*Solve for x using the triangle angle sum theorem.
*Solving an equation word problem.

Problems Improved:
*Improved multiple choice on addition and subtraction problem.
*Improved multiple choice on rounding problem.
*Improved multiple choice on multiplication problem
*Improved multiple choice on solving systems word problems

New Features:
*Various tips are displayed in the Document Editing page.

12-17-08

2008-12-17T13:08:00.000-08:00

We have been making an effort to improve and expand our problem library. Many more problems are being programmed. We will keep listing them as they are completed. Here's a glimpse of what has been added.

Problems Added:
*Adding fractions using the commutative and associative properties.
Algebra -> Decimals, Fractions, and Percents
*Root of a negative (imaginary).
Algebra 2 -> Powers, Inverses, and Radicals

Problems Improved:
*Improvements on multiple-choice Area of Cirlce and Circumference
*Matrices Problems has better alignments.
*Many problems involving circles can have the option of using 3.14 or pi

11-19-08

2008-11-19T07:29:00.000-08:00

We are continually adding more problems to strengthen our library, especially those that our users have requested. Also, our answer sheet feature has been upgraded. It now includes the ability to print pdf, and the answer contains the question itself.

Look out for more problems and videos being added to our library. If you have any problem request, please don't hestitate to fill out the suggestion form. You can find the suggestion link in the menu where you are to add the problems.

10-14-08

2008-10-14T15:03:00.000-07:00

We have finished with Algebra 2. We are always looking to make our library of problems as complete and rich as possible. Let us know if you see something you would like us to add.

We are working on adding more tutorial videos. This is a great resource for anybody just wanting to learn or review.

In addition, we are tweaking our current library and search to improve their functionality and effectiveness.

Check all these things out and if you have any suggestions, feel free to let us now.

9-19-08

2008-09-19T14:43:00.001-07:00

Algebra 2 is currently undergoing tests for bugs. If you see any, please report it to us using our bug report form.

We are back to adding more tutorial video for our problems. You will see new videos being updated from time to time.

There is a new feature for printing your documents. Depending on your preference, you can now choose to print in a horizontal or vertical format.

8-19-08

2008-08-19T14:28:00.000-07:00

Algebra 2 is nearing completion. However, this does not mean we will not add any more problems for it. If you like to see a problem, please fill out the problem suggestion form when adding problems.

Our summer special is also nearing an end. Take advantage of saving some money and support Teach for America at the same time due. It's a win-win situation for all of us.

7/18/08

2008-07-18T08:38:00.000-07:00

We are currently working on adding Algebra 2 problems to our list of subjects. You are free to try out the new problems, but please note, this section is under construction. That means you may find bugs and errors that are still work in progress.

6/19/08

2008-06-19T21:59:00.000-07:00

Several new things you may see on our website. We have been adding more tutorial videos and some bugs were also fixed. In addition, there is a summer special going on. For less than a dollar a month you can have deluxe access. That's $5 dollars for 6 months.

You also may have noticed the Teach for America banner. During the summer months (6-15 to 8-31), we will be donating 25% of our sales to this great organization. Teach for America is all about making changes to improving our education system. They bring highly skilled and motivated teachers to our most needy schools. All for the effort to close the achievement gap.

5-15-08

2008-05-15T14:31:00.001-07:00

You may have already noticed, but our buttons are looking better. We think the new design makes our website more aesthetically pleasing.

We have made some changes to the Document Editing Menu as well. Many functions are improved. Now when you delete a problem, update problem number, or add/remove page break, the page does not reload, saving time.

We also added some new tutorial videos, specifically for fractions, ratios, and percents type problems.

If there's any improvements you like to see or if there's any bugs, feel free to let us know, support@davitily.com

4/14/08

2008-04-14T08:16:00.000-07:00

You may have noticed that we are adding tutorial videos to our library. This would be a useful tool for learning and teaching math. In addition to creating worksheets, students can learn how those problems are solved. There are some videos right now, but many more are on the way.

3/10/08

2008-03-10T17:46:00.000-07:00

There has been some cosmetic changes to improve usability. Now, when you log in, you go straight into your documents menu, and start editing right away. Our problems are currently in process of transitioning be just a few images instead of many combined images. This will improve load time and gives better overall images.

We haven't gotten many bug reports lately. That is a good thing, however, please let us know if you see any bugs (e.g. wrong answers, alignment problems, multiple choice issues, etc..). You can do so by emailing us, or using the support page. Remember, you can get 1 to 3 free months per bug report.

2-6-08

2008-02-06T17:03:00.000-08:00

There are serveral improvements in progress for Davitily Math Problem Generator. We are currently working on improving the speed of the problems displayed, improving the randomness of our multiple choice answers, and fixing some display alignment issues for pdf. Instead of taking multiple images to display a problem, we are minimizing the number of images. It is usually reduced to just one image thus giving a faster a load time.

1/2/08

2008-01-02T16:03:00.001-08:00

Happy New Years!

We have added an exciting new feature to Davitily Math Problem Generator. Now you can administer the test/worksheet (multiple choice only) you created to be taken online. With one login and password, students can do the test/worksheet online, and their information and graded scores will be sent to your account. Right now this feature is in its beta stage so let us know of any bugs or improvements you would like to see.

12-19-07

2007-12-19T19:59:00.000-08:00

We have updated our subscription table to include a Holiday Special. For a limited time, you can get 6 months for just $5.00. That's less than a dollar a month, and double the amount of time you would get for a regular $5.00 subscription. This special is valid for new and current users. Visit us at http://www.mathproblemgenerator.com.

Happy Holidays and Happy New Years!

11-22-07

2007-11-22T08:28:00.001-08:00

You probably have already noticed that our test edit menu user interface has changed. This gives a cleaner look, increases ease of use, and also cuts down on the load time.

We are constantly adding more word problems. New ones have been sprouting every now and then in our libary, and more are on the way.

11-11-07

2007-11-11T14:14:00.000-08:00

We are working on adding word problems to our library. You may see some new problems on our topics in the very near future. If there's any particular word problems you would like to suggest, please let us know via email support@davitily.com or our support page.

Also, we are continuing to improve our website design, making it more simplistic, elegant, and to create better usability.

10-29-07

2007-10-29T22:50:00.000-07:00

We updated our mathproblemgenerator.com main page. The previous page was too wordy and we wanted something more simplistic. Let us know what you think.

10-21-07

2007-10-21T19:01:00.000-07:00

Even though you might not noticed any significiant differences, but we upgraded our server. With the new versions of server OS and software, our security has been improved.

We are working on the final stages of the SAT subject. It should be completed around the end of October if not early november.

10-15-07

2007-10-15T15:28:00.000-07:00

After the completion of SAT, we plan to add more word problems to our topics. This has been a request of our users. We do listen. If there is any word problems you would like to see, please fill out our support forms or email us at support@davitily.com.

10-06-07

2007-10-06T23:43:00.000-07:00

More improvements to our website have been made. One important fix was fraction type problems with variables are improved to look better in the pdf printout. We have also added a couple more problems to SAT. Please feel free to check them out and report any bugs.

09-28-07

2007-09-28T19:55:00.000-07:00

Our development of SAT is coming right along. We have added a few problems that are work in progress. You can access them and try them out.

A few bugs have been fixed. One such bug was the vertical alignments for operations that looked a little off when exporting to pdf. That is now fixed. Please let us know of any bugs or formatting error you see. If you are a subscribing member, those reports does not only help improve our service to you, but can also earn you free month(s).

09/21/07

2007-09-21T11:52:00.000-07:00

Some of you may have already noticed that we have changed our domain for Math Problem Generator to http://www.mathproblemgenerator.com. We feel this makes it easier to remember our website when needing access to it.

We are still working on SAT as a new subject for the Math Problem Generator. We are planning to have it done by the end of October.

09/14/2007

2007-09-14T22:38:00.000-07:00

Group access for Davitily Math Problem Generator Deluxe is now currently up and running. We hope this will provide the convenience for users needing to provide and manage group access for their schools or organizations. Group managers have the ability to add users, delete users, update user info, and manage subscription plans.

You can visit the group access menu at
http://www.mathproblemgenerator.com/main/gui/group_menu/group_menu.php

First Blog

2007-09-08T11:30:00.000-07:00

Hello readers. As users, it is important to know what's going on with Davitily. We are starting this blog just for this reason, in order to imform you of upcoming news and development towards our website.

Well, lets begin.

We are currently working on a new subject for our users, SAT. We feel these topics are important, since this is something most students prep for.
A group access and management system is also in the works. This will allow groups to give access to all their members under one payment account. In addition, there will be discounts for group access.

Please email us at support@davitily.com if you have any questions or comments.