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Behzad
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25 votes
7 answers
3k views

A Non-Unique Factorization of Integers!

19 votes
14 answers
4k views

Probability Misconception: Two Bags with Black and White Marbles

17 votes
10 answers
4k views

How to Write Steps of Solving Equations?

11 votes
2 answers
204 views

Math Outdoor/Camping Games and Activities

9 votes
6 answers
2k views

Student Project about Prime Numbers: How to Continue?

8 votes
1 answer
499 views

"Probable" vs. "Likely"; Choosing the Appropriate Word

8 votes
2 answers
160 views

Cross Sections Workshop

8 votes
4 answers
2k views

Unable to solve word problems, fluent in arithmetic

8 votes
4 answers
623 views

Subtraction to Addition Conversion; how important is it?

8 votes
5 answers
2k views

Exponents with Negative Base; with or without Parentheses

7 votes
2 answers
307 views

Appreciating the Distributive Law

7 votes
3 answers
2k views

Negative Denominator in Fractions; Importance and Applications

7 votes
11 answers
8k views

Why unlike terms cannot be simplified?

7 votes
4 answers
200 views

Showing the Necessity of Proving the Impossibilities

7 votes
4 answers
5k views

Motivation for Exponent Rules

5 votes
2 answers
220 views

Fractal Generation Project: How to Continue?

5 votes
3 answers
2k views

Math Research Projects on Water

5 votes
4 answers
3k views

Importance of Simplifying Algebraic Expressions

4 votes
1 answer
135 views

In Polynomial Form, After Simplification (But Not Before!)

3 votes
2 answers
2k views

Teaching Models for Mathematics (like 5 E's in Science)

3 votes
1 answer
111 views

Are Proficiency Strands Hierarchical?

3 votes
1 answer
217 views

"Seeing" GCD and LCM in Word Problems

2 votes
0 answers
183 views

Core-Plus Mathematics: Similar Resources for grades 7-9