This is a complete lesson plan that has students solving word problems using addition and subtraction within 20.

This lesson plans has students solve word problems about marbles using addition or subtraction within 20.

In this task, students are asked to calculate what a car's list price would be in states with different sales taxes. Its purpose is to help students develop familiarity with different ways to solve a problem. Aligns with A-CED.A.1.

Site offers lessons and activities designed to supplement study of the environment and ecology. Concise explanations are presented on the importance of trees in our world. Also, problem solving and creative thinking is encouraged...

In groups, students not only design and build something using equipment set for them but also write a detailed description of the item they have created so that others can follow their lead. This activity requires students to be...

Young scholars apply the mechanical advantages and problem-solving capabilities of six types of simple machines (wedge, wheel and axle, lever, inclined plane, screw, pulley) as they discuss modern structures in the spirit of the...

In this Interdisciplinary Field Investigation learners will combine science, math, geography, creative writing and art. The setting will be a local stream (site yet to be determined, Minnehaha or Vermillion) where 150 students will...

In this Interdisciplinary Field Investigation students will combine science, math, geography, creative writing and art. The setting will be a local stream (site yet to be determined, Minnehaha or Vermillion) where 150 students will...

n this task learners use different representations to analyze the relationship between two quantities and to solve a real world problem. The situation presented provides a good opportunity to make connections between the information...

Students will learn that there are multiple ways to solve math problems, such as drawing a picture, using counters, using fingers, using a number line, and memorizing facts. The teacher writes a simple addition problem on the whiteboard...

In this lesson plan students solve word problems involving money and use the symbols correctly.

In this lesson plan students count the money and use symbols correctly to solve the word problem.

In this lesson plan students solve word problems involving money and use symbols correctly.

In this lesson, 7th graders solve real world problems using the four operations.

The purpose of this task is to see how well students students understand and reason with ratios. This task was adapted from problem #14 on the 2011 American Mathematics Competition (AMC) 8 Test. Aligns with 7.RP.A.3. The site provides a...

In this problem, students will use the number of decimal places in the coefficients to motivate writing and solving a system of equations. Aligns with A-REI.C.6.

At first glance, this might seem like an impossible problem because the number $7^{2011}$ is much too large to evaluate even with a calculator. It requires a starting point, and, to many, such a starting point might not be obvious....

The purpose of this task is to give students an opportunity to solve a multi-step percentage problem that can be approached in many ways. Because the tax and tip in this problem are a fixed percentage of the cost of the meal, the total...

In this lesson, 7th graders write and solve an inequality to solve the problem.

The purpose of this task is for students to solve a problem in context that can be solved in different ways, but in particular by dividing a whole number by a unit fraction. Aligns with 6.NS.A.1.

In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or...

Note that in each of these problems we are given a set of a specified size and a specified number of subsets into which it is to be divided. The questions ask the student to find out the size of each of the subsets. Students are not...

The purpose of this task is to give middle schoolers an opportunity to solve a multi-step ratio problem that can be approached in many ways. The site includes a task and the solution.

This task asks students to use similarity to solve a pool table problem. Students must use the fact from physics that when an object bounces off of a wall, the angle of incidence equals the angle of reflection. Aligns with G-SRT.B.5.