Pre-K-2, 3-5
Learn how to count, collect, exchange, and make change for coins by manipulating coins using an array representation.
3-5, 6-8
This strategy game requires you to select cards with a specified sum before your opponent (also available on iOS and Android).
Pre-K-2, 3-5, 6-8, 9-12
Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? You can create all those things and more! Place the images you want, then export it as a PDF or as a JPG image.
3-5, 6-8
Dividing Numbers into Two Factors and Building Arrays to Represent Each Factorization
3-5, 6-8
Explore different representations for fractions including improper
fractions, mixed numbers, decimals, and percentages. Additionally, there
are length, area, region, and set models.
Pre-K-2, 3-5
Play a matching game with different representations of equivalent items.
3-5
Students compute with whole numbers and and decimals
as they make recommendations for buying an aquarium for the class. Students
research the various materials needed for the aquarium and make plans based on
their findings. They solve the problem while working within a budget.
3-5
In this lesson, students apply their knowledge of whole
number place value to decimal place value by using different blocks to represent
one whole. By using blocks other than the unit cube to represent one whole,
decimal place value can be explored and understood in a concrete fashion.
3-5, 6-8
Studying the behavior and motion of dinosaurs is obviously a
challenge since these creatures are extinct. If researchers wish to examine the
running velocity of a dinosaur, they must instead consider other evidence of
dinosaur motion and make an indirect estimate. In this lesson, students will
play the role of researchers who field test the Alexander Formula—a formula that uses paleontology data to estimate dinosaur running
velocities. Students will serve as human analogues, making measurements on
themselves, computing predicted running velocities using the Alexander Formula,
and calculating their actual running velocities. They will then evaluate the
accuracy of the formula by comparing estimated and actual running velocities
for the class.
Pre-K-2, 3-5
This kinesthetic lesson involves using models to practice
regrouping and to reinforce place value understanding. Students work together
to play games involving bases 10 and 5. Students will also interpret models as
numbers.
