Magic Dice: Composing and Decomposing 7
There’s something pretty irresistible about telling a group of young students that you’re a mathemagician. 😂 And with nothing more than a number cube, you can perform a little math…
Operations
Repurposing Flashcards: Representing Multiplication
Flashcards have traditionally been used to practice multiplication facts: see the fact, say the product, move on to the next card. But when multiplication is first introduced, students need much…
Finding Factors and Common Factors
Being able to find factors and common factors is an important skill that shows up in a number of areas of mathematics. Students use factors to recognize prime and composite…
- Fractions & Decimals · Grades 3-5 · Grades K-2 · Instructional Strategies · Number Sense · Operations · Teacher Tips
Why the Concrete-Representational-Abstract (CRA) Sequence Matters
First, I have a quiz for you. If you speak and write Hindi, you can skip this part! For everyone else, look at the symbols below. Can you tell which…
Reasoning About Decimal Multiplication and Division
Multiplying and dividing decimals can be tricky for students, but it’s often not for the reason we think. Once they know the algorithm, the computation is really just like dividing…
Analyzing Math Mistakes
Look at the following multi-digit multiplication problems and see if you can tell why each one produced the wrong answer. I’ll wait… Okay, so did you figure it out? This…
Solving Problems with the Unknown in any position
Beginning as early as 1st grade, students should have experience solving addition and subtraction problems with the unknown in any position. Traditionally, we have tended to focus on result unknown…
Using a Frayer Model for Math
A Frayer Model is a graphical organizer used to define and understand a concept by examining its definition, characteristics, examples, and non-examples. Frayer Models are typically used for vocabulary. but…
Difference from 100 Math Game
Making 100 is nearly as important a skill as making 10, and the two skills are clearly related. This Difference from 100 math game will have your students composing 100…
