CK-12 Foundation
Conversion of Decimals, Fractions, and Percents
Five questions—true or false and multiple-choice—challenge mathematicians to convert decimals, fractions, and percents. An interactive table displays how to write a portion of shapes in a variety of ways. A discussion question concludes...
CK-12 Foundation
Large Decimal Rounding to Decimal Representations: Weighing a Whale
An interactive challenges mathematicians to round large numbers with help from a large scale that measures the weight of a blue whale. The practie's five questions include multiple-choice, fill-in-the-blank, true or false, and an open...
CK-12 Foundation
The Percent Equation: Soccer Stadium
A soccer-themed interactive challenges mathematicians to solve five questions involving percent equations. Question types include multiple-choice, fill in the blank, true or false and a discussion. A color-coded stadium with movable...
Teach Engineering
Floaters and Sinkers
Whatever floats your boat. Young engineers learn about density by measuring the masses and volumes of boxes filled with different materials. Using their knowledge of densities, they hypothesize whether objects with given densities will...
Curated OER
Lao Design: Mask making
Students examine the concept of symmetry in Lao art and apply it to their own works. They construct full-face masks by copying the stencils onto colored paper. Students apply creative touches by painting and drawing on their assembled...
Curated OER
Survival Still
Lead your class to construct a solar still on campus to demonstrate how water can be extracted from the soil. The power of solar energy is emphasized, as is the concept of how capillary water can be recovered and purified by using a...
University of Arizona
Found News Poems
Combine informational text and creative writing with one fun activity! Middle and high schoolers write found poems based on newspaper headlines that they find. The resource includes a thorough lesson plan and many links to articles that...
Teach Engineering
Sliders (for High School)
Slip sliding away. Groups investigates the two types of friction by running an experiment that allows them to calculate the coefficient of static friction and the coefficient of kinetic friction. The experiment uses a box, a...
Charleston School District
Volume of Rounded Objects
How much can different shapes hold? The answer varies depending on the shape and dimensions. Individuals learn the formulas for the volume of a sphere, cone, and cylinder. They apply the formulas to find the volume of these...
Teach Engineering
A Good Foundation
It takes a strong foundation to build a house and a stronger one for a bridge. This resource presents the effects of geology and soil on bridge foundations. Working in groups, the class investigates the interaction of shallow and deep...
Virginia Department of Education
Arithmetic and Geometric Sequences and Series
Examine the importance of sequence and series through contextual situations. Here, learners partake in a five-day unit that begins with the basics of arithmetic and geometric sequences and series. As it progresses, pupils apply the...
Intel
Biomes in Action
A STEM project-based learning lesson, number four in a series of 10, focuses on human impacts to biomes around the world. Groups work together as environmentalists to research a specific biome, investigating human impacts on it. From...
Teach Engineering
About Accuracy and Approximation
How accurate are robots? Groups draw lines by moving robots backwards and forwards by one rotation of the wheels. Using the appropriate formula, they determine the percent error in the length of the lines in relation to the calculated...
Houghton Mifflin Harcourt
Give It All You’ve Got!: English Language Development Lessons (Theme 2)
Go beyond the textbook to gain a better appreciation for the English language. A series of ESL lessons help expand the concepts found in Theme 2: Give It All You've Got. The second lesson in a three-part unit incorporates strategies such...
Curated OER
Similarity and Dilations - Discover Properties of Similar Figures
Learners investigate properties of similar figures. For this properties of similar figures lesson, pupils construct similar figures using Cabri Jr. They dilate their figure to create a similar one, and discuss the relationships between...
Curated OER
Solving Systems Using Matrices
Explore the concept of systems of equations in two variables and use matrices to solve them. Young mathematicians enter coefficients and constants into a matrix and then solve using row reduction. Instructions on how to use the shortcut...
Curated OER
Adding Decimals
Explore the practical uses of adding numbers with decimals as scholars add measurements and money. The first 12 equations are written vertically with half the sums requiring a dollar sign and half a unit of measurement. The next six are...
Curated OER
Location on a Grid
Locating a point on a grid is an important skill to master; use this practice sheet to give schlars some clear and useful experience. On a large, simple grid they use a coordinate system to find specific squares and color them a given...
Curated OER
Working with Money
How much money do you have? Scholars add up dollars and cents to get totals for 12 visual addition problems. They look at pictures of the currency and write the total numerically (remember that dollar sign). Although the coin images look...
Curated OER
Finding 10s
For beginners to addition, sets of objects are the ideal way to make this concept understandable. For each of these sets they ring 10 and count the remaining. Then, scholars fill in the addends as 10 and the remaining number. The sums...
Curated OER
Fractions
Represent fractions visually using shape models. Scholars color in two sets of shapes to represent specific fractions: 2/3 and 3/4. The shapes are segmented into equivalent fractions for most of these, so scholars need to understand this...
Curated OER
Fractions of Shapes
Modelling fractions through shapes is a great way to demonstrate this concept to beginners. Learners examine 12 shapes, each divided into an even number of equal segments (up to 16 parts). They shade in half of each shape by shading half...
Curated OER
Money
Converting money is both practical and an excellent gateway into future math concepts, and scholars get plenty of practice here! There are four sections, each with 12 values for them to convert. First, they change cent values into...
DK Publishing
Money for Chores - Mixed Tables
Do your young mathematicians get paid for chores at home? Use this familiar real-world concept to explore multiplication and money math. They use a chart of chore payments to answer six questions and determine how much money Joe and...