Illustrative Mathematics
Making Hot Cocoa, Variation 2
Learners are introduced to dividing by fractions in a visual way. Setting up groups from the information in the problem allows them to see what we divide and why. Use with the previous lesson, which can be found in Additional Materials,...
Illustrative Mathematics
Voting for Three, Variation 1
This is an opportunity for young mathematicians to apply reasoning to solve real-world problems with ratios. Even though there are three candidates for class president, students will only consider two at a time, making the first problem...
EngageNY
Addition and Subtraction Formulas 2
Knowing the addition formulas allows for the calculations of double and half formulas. The fourth installment of 16 has the class use the addition formula to develop the double angle trigonometric formulas. Using the double formula,...
Edline
Adding and Subtracting Integers
When should you use a number line to add and subtract integers, and when should you use absolute values? Complete a set of worksheets designed to reinforce adding and subtracting integers with both standard problems and word problems....
EngageNY
Modeling from a Sequence
Building upon previous knowledge of sequences, collaborative pairs analyze sequences to determine the type and to make predictions of future terms. The exercises build through arithmetic and geometric sequences before introducing...
EngageNY
Characteristics of Parallel Lines
Systems of parallel lines have no solution. Pupils work examples to discover that lines with the same slope and different y-intercepts are parallel. The 27th segment of 33 uses this discovery to develop a proof, and the class determines...
National Security Agency
Place Value - Butterflies Floating Place to Place
Learn about butterflies and place value in a series of interdisciplinary lessons! With several worksheets that reference butterfly facts in word problems, kids can practice science and math in one activity. Additional worksheets are...
Illustrative Mathematics
Shirt Sale
Everyone loves a good deal, and your mathematician's job is to calculate the original price when given the discount. A different type of problem than the traditional "find the percent change" has your learners working backwards to...
West Contra Costa Unified School District
The Power of Ten: Building a Magnitude Model
Add visual representation to teaching place value with a magnitude model. Using adding machine tape, pupils build a linear place value strip from 1 to 100.
Curated OER
Unstable Table
Bothered by a wobbly table? Learn how to fix this problem using concepts of slope and continuity. Pupils first consider the problem in two dimensions and then progress to three dimensions. The solution is really quite simple.
Virginia Department of Education
Curve of Best Fit
Which function models the data best? Pupils work through several activities to model data with a variety of functions. Individuals begin by reviewing the shapes of the functions and finding functions that will fit plotted data points. By...
Education Development Center
Similar Triangles
Model geometric concepts through a hands-on approach. Learners apply similar triangle relationships to solve for an unknown side length. Before they find the solution, they describe the transformation to help identify corresponding sides.
National Research Center for Career and Technical Education
Health Science: Back to Basics
This lesson focuses on unit conversion, proportions, ratios, exponents, and the metric system. Discuss measurement with your math class and demonstrate how to solve several health-science word problems. Give learners a chance to visit an...
TryEngineering
Choose Your Best Way
Find the best path through town. The lesson teaches future computer programmers about networks and paths in graph theory. They develop a network of their towns to determine the most efficient path to visit each of their homes.
Curated OER
Problem-Solving Application- Multiple-Step Problems
In this multiple-step problem solving application worksheet, 2nd graders determine how to write a number sentence for each section of a word problem. They apply the technique in 2 problems using counters when needed and deciding which...
Curated OER
Amusement Park- Equal Groups Problem Solving Enrichment Worksheet
In this equal groups problem solving worksheet, 2nd graders complete 2 problems. They draw equal groups to break apart a number to determine the answer to the problem.
Curated OER
Add and Subtract
In these twenty pages of addition and subtraction problems worksheets, students subtract one-digit from one-and two digits, add one-digit plus one- and two digits, and both add and subtract to problem solve. Students solve 200 problems.
Curated OER
Visual Sum and Difference Word Problems
Aside from awkward wording, this worksheet has problems for learners to solve. They read each problem then use the provided pictures to solve. Note: The images and language are misleading on this worksheet and may be confusing for...
Curated OER
The Math Lesson 46
In this division practice worksheet, students use their problem solving skills to solve 240 problems that require them to divide in word problem and regular problems.
Curated OER
The Math Lesson 20
In this addition practice worksheet, students use their problem solving skills to solve 190 problems that require them to add 2 and 3 digit numbers with carrying.
Curated OER
The Math Lesson 45
In this division practice worksheet, students use their problem solving skills to solve 278 problems that require them to divide in word problem and regular problems.
Curated OER
The Math Lesson 31
In this multiplication practice worksheet, students use their problem solving skills to solve 210 problems that require them to multiply in various types of problems.
Curated OER
The Math Lesson 19
In this addition practice worksheet, students use their problem solving skills to solve 200 problems that require them to add 2 and 3 digit numbers with carrying.
Curated OER
The Math Lesson 41
In this multiplication practice worksheet, students use their problem solving skills to solve 210 problems that require them to multiply in various types of problems.