In a video game called Snake, a player moves a snake through a square region in the plane, trying to eat the white pellets that appear. This task has students approach a function via both a recursive and an algebraic definition, in the...

This task assumes an understanding of the relationship between functions and equations. Young scholars try to solve equations in order to find the inverse of a function given in equation form: when no such solution is possible, then the...

Ari has collected data on how much her classmates study each week and how well they did on their recent math test. Here is part of the data showing the percentage of each group (divided according to hours spent studying) who got B's or...

Members of the seventh grade math group have nominated a member of their group for class president. Every student in seventh grade will cast a vote. There are only 2 candidates in the race, so a candidate must receive at least 50 percent...

For this task, students are presented with a graph and asked to identify the functions that could be represented by it and explain their thinking. The task addresses knowledge related to interpreting forms of functions derived by...

Find the fraction of a dollar is dimes and pennies & write your answer in both fraction and decimal form. Aligns with 4.NF.C.5.

The purpose of this task about tiling a kitchen floor is to give learners practice in reading, analyzing, and constructing algebraic expressions, attending to the relationship between the form of an expression and the context from which...

During this task, students will realize that equivalent expressions produce the same graph. The lesson will lead to discussions about the value of different forms of equations. Aligns with F-IF.C.7.a, A-SSE.B.3, and F-IF.C.7.

This task shows the congruence of two triangles formed by cutting a rectangle in half along the diagonal. Students are asked to investigate elements of congruence and transformations among the shapes. Aligns with 8.G.A.2.

Medhavi suspects that there is a relationship between the number of text messages high school learners send and their academic achievement. To explore this, she asks a random sample of 52 students at her school how many text messages...

This task leads students through a series of problems which illustrate a crucial interplay between algebra and geometry. Aligns with A-REI.D.10.

In this task, 8th graders work with linear functions and learn how to discuss and make calculations with slope and x- and y-intercepts. Aligns with 8.EE.B.

In this task, students will rewrite fractions as a sum of distinct unit fractions. To solve the problem, students will rewrite a simple rational expression and will need to study the arithmetic of these unit fractions with a variable in...

Seventh graders compare the batting averages of two baseball players in this lesson.

The Energy Systems and Solutions unit brings students through the exploration of science and engineering concepts as they relate to energy issues in everyday life. Issues surrounding energy production and energy consumption provide a...

K-12 educational articles, lesson plans, and other teaching materials on current NASA projects that meet national education standards. NASA generates awareness of students' interest in space, science, mathematics, geography, and...

K-12 educational articles, lesson plans, and other teaching materials on current NASA projects that meet national education standards. NASA generates awareness of students' interest in space, science, mathematics, geography, and...