CK-12 Foundation
Comparison of Fractions, Decimals, and Percents: Filling in the Squares
An interactive equipped with five questions challenges mathematicians to convert between fractions, decimals, and percents. A diagram changes its size to visually depict conversions alongside symbols to compare them. Question types...
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
Proportions to Find Percents: Bag of Candy
Proportions and percents are the focus of an interactive designed to boost math proficiency. Five questions challenge participants to solve candy-themed word problems. A color-coded tool with moveable parts assists mathematicians in the...
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...
CK-12 Foundation
Values Written as Powers: Binary Numbers 9 to 16
Challenge mathematicians to crack the binary code with an interactive that focuses on numbers nine to 16. A table reveals exponential equations to aid in answering multiple-choice questions. A discussion question gauges comprehension.
Curated OER
Ann Arbor Growth & Immigration
Third graders describe some of the factors that brought early settlers to Ann Arbor. They read Narrative-A Trip from Utica, New York, to Ingham County, Michigan in 1838. As an added challenge, 3rd graders can use maps to track Silas...
Teach Engineering
Design Step 1: Identify the Need
What exactly does an engineer do? Learners find out through a lesson that asks them to solve a problem that affects a target population. Aspiring engineers learn the steps of the engineering design process as they apply it...
Code.org
Events Unplugged
Introduce event-driven programming. Young computer scientists learn the meaning of event-driven programming and how it is different from previous styles of programming. They play a card game to simulate the challenges that occur in this...
PBS
Watercraft
Whatever floats your boat—with some additional weight. The first activity in a five-part series challenges pupils to design a boat to hold pennies. Using the design process, learners design, build, and test their boats, making sure they...
PBS
Zip Line
Slide all the way to the bottom. Using the design process, pupils create a carrier for a ping pong ball that will travel down a zip line. Learners test their carriers and determine solutions to issues they encounter to complete the third...
Curated OER
Two Rivers Ran Through It
Sixth graders discover the problems that early Mesototamian farmers faced while developing agriculture in the land between the Tigris and Euphrates Rivers. They design a working model that solves those unique challenges.
Noyce Foundation
Movin 'n Groovin
Examine the consequences of varying speed. An engaging set of five problem sets challenges young mathematicians by targeting a different grade level from K-12. In the initial lesson, scholars make conclusions about the time it...
Noyce Foundation
Diminishing Return
Challenge individuals to compete as many tasks as possible. Lower-level tasks have pupils apply costs and rates to solve problems. Upper-level tasks add algebraic reasoning and conditional probability to the tasks.
Noyce Foundation
Fractured Numbers
Don't use use a fraction of the resource — use it all! Scholars attempt a set of five problem-of-the-month challenges on fractions. Levels A and B focus on creating fractions and equivalent fractions, while Levels C, D, and E touch on...
PBS
Paddle Power
Potentially get all the way across the water. The fourth of five design challenges asks pupils to develop a plan for a paddle-powered boat that will store its energy. Given a limited number of supplies, the class members design, build,...
PBS
Helping Hand
Reach out and grab something. Given the task of picking up objects at least two feet away, pupils design and build a grabber. The last activity in a series of five challenges requires learners to use information about fulcrums and levers.
Curated OER
Counting by Grouping Objects
Kids can count to 100 by 2's, 5's, and 10's, it's called counting by grouping. They are presented with a variety of counting tasks, they count each set of objects by 10's, 2's and 5's then discuss which method was quickest. A challenge...
Maryland Department of Education
The Concept of Diversity in World Literature Lesson 1: Unit Introduction
To launch a unit study of the concept of diversity in World Literature, class members compare Chinua Achebe's essay, "An Image of Africa: Racism in Conrad's Heart of Darkness" and Richard Rodriguez's essay, "The Chinese in All of...
Houghton Mifflin Harcourt
We Can Do It!: English Language Development Lessons (Theme 10)
English language development lessons are brought to you in poems, picture cards, and grand discussions in a We Can Do It! themed unit. Topics of discussion include daily challenges, parts of a whole, words that describe what we...
EngageNY
Construct an Equilateral Triangle (part 2)
Triangles, triangles, and more triangles! In this second installment of a 36-part series, your young mathematicians explore two increasingly challenging constructions, requiring them to develop a way to construct three triangles that...
Curated OER
Using Insight Puzzles to Engage and Intrigue Gifted Learners
Challenge your smartest kids with these engaging, fascinating puzzles that require real outside-the-box thinking to solve!
National Endowment for the Humanities
Lesson 1: The United States Confronts Great Britain, 1793–1796
After the Revolutionary War, the success of the United States was far from guaranteed. Foreign powers coveted the new land, and Great Britain challenged American sovereignty. Learners consider the challenges facing the new nation using...
University of Oklahoma
Putting It All Together: Assessing My Progress and Portfolio
Celebration time! The final unit in a 10-unit series asks learners to review their work and assess their progress. They complete another YOU! Scale and ME! Scale worksheet and compare the results with the worksheets they created at the...
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