Curated OER
Measuring the Area of Polygons
Fourth graders use pattern blocks to explore areas of polygons. They explain that the answers to the area of the same polygon vary according to the units of measurement used. They visualize how different units of measurement can be used...
Curated OER
Double Dipping
Fifth graders find and display all possible pairs of flavors of ice cream and look for patterns in the results. They discuss strategies for finding all combinations of flavors. Students explain and write a description for the pattern...
Curated OER
Story Problem Writing
Students write story problems which can only be solved with the application of multiplication facts. They write an extra fact that isn't needed to solve. When their partners do the problems, they must cross out the fact that they do need.
Curated OER
Multiplying Polynomials - FOIL
Students participate in an activity to demonstrate the distributive property. They take notes as they observe different methods of FOIL. Afterward, students work on their own, and in groups to determine which method to use and complete...
Curated OER
Subtracting Fractions
Students investigate the concept of subtracting fractions. They use a variety of problems in order to practice new skills. The independent practice is used to obtain an informal measurement of mastery with the use of a formal quiz for a...
Curated OER
Code Breakers
Learners collect data and make a frequency table, change ratios into percents, and analyze data to make predictions.
Curated OER
Karen's Tiles
Students investigate how perimeter changes as area changes to see the relation between area and perimeter for similar shapes. They then students answer the question if the area of the rectangle increase, does its perimeter have to increase?
Curated OER
Learning by Sorting
Students sort Lego Duplo pieces after determining the attributes to classify them by. They work in pairs to sort a group of Duplo pieces and explain their process to others.
Curated OER
Letter Patterns
Second graders look at the number patterns we get from letters and numbers. They keep track of the numbers involved by drawing up a table of values. It's important here to look for the pattern and see how the number of tiles changes from...
Curated OER
3-D Beginning Graphs
Students explore the concept of big and small. They collect objects from the classroom, sort them by size, and create a graph using Duplo stacking blocks.
Curated OER
Jo's Table
Second graders work on the problem with a partner. They examine what they are supposed to be doing. They share the students's solutions making sure than they are looking for patterns along the diagonals.
Illustrative Mathematics
Illustrative Mathematics: Words to Expressions 1
This problem allows students to see words that can describe the expression from part (c) of "5.OA Watch out for Parentheses." Additionally, the words (add, sum) and (product, multiply) are all strategically used so that the student can...
Illustrative Mathematics
Illustrative Mathematics: Video Game Scores
Standard 5.OA.2 asks young scholars to "Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them." This task asks students to exercise both of these complementary skills,...