Curated OER
Great Graph!
Here is a fantastic lesson counting coins, interpreting graphs, and the concept of "greater than" and "less than." Young mathematicians utilize worksheets embedded in the plan in order to practice these concepts. The worksheets are...
Joy Uzarraga
Famous American Research Project
Designed specifically for lower elementary pupils, this is a great biographical research project in which students research a famous American, and then design creative poster boards to help them "become" the famous American they have...
Illustrative Mathematics
Who is the Tallest?
A simple question, with a not-so-simple answer. Working with whole and mixed number measurements in inches, feet, and yards presents a problem with many possible solutions. A great activity that challenges the minds of young...
Curated OER
Money Review: Worksheet 1
Challenge your class to twelve multiple choice problems, where they must choose the sequence of money amounts that are correctly listed from least to greatest and vice-versa. There are also eight other problems for mathematicians to fill...
Curated OER
Find 2/3
This short problem with representing fractions on a number line is more than meets the eye. Labeled only with the numbers zero and 1/4, a number line is used to locate the fraction 2/3. A solution can be found in multiple ways, but young...
Illustrative Mathematics
Numbers in a Multiplication Table
Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity...
Illustrative Mathematics
Overlapping Rectangle
Challenge young mathematicians' ability to compose and decompose shapes with this fun geometry puzzle. The goal is simple, locate all of the rectangles shown in a picture of three overlapping rectangles. Perform this activity as a whole...