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In this activity, learners use number sense and mental math strategies to estimate the price of a sign.

In this math game, learners try to earn the most points by winning stacks of four dice. Learners practice number recognition and addition skills.

In this sorting activity, learners play a game in which they try to identify the largest number of differences between two objects.

In this activity, learners discover how a piece of fruit can act as an electrolyte, conducting electricity between two different metals.

In this game, learners are stuck in a right turn only world! Learners take turns rolling a die and moving their game pieces along the lines of a grid to get "home," by only making right turns.

Over 1 or 2 days, learners use vinegar to remove the calcium from a chicken bone. They then explore how the bones have changed. An accompanying video with Mr.

In this activity, learners make three different "seed" types and determine which design flies the farthest.

This is part 2 of the three-part "Crayon Rock Cycle" activity and must be done after part 1: Sedimentary Rocks. In this activity, learners explore how metamorphic rocks form.

In this activity, learners compare the number of letters in the names of the people in their families or group of friends.

This is part 3 of the three-part "Crayon Rock Cycle" activity. Before starting this section, learners must have completed part 1: sedimentary rock and part 2: metamorphic rocks.

In this activity about problem-solving, learners build a house for the Three Little Pigs using twenty straws and two index cards.

This is part 1 of the three-part "Crayon Rock Cycle" activity. In this activity, learners explore how sedimentary rocks form.

In this activity, learners explore probability with dice.

Use a homemade potato launcher to explore air pressure. This activity includes simple instructions on how to build a homemade propulsion pipe using pipe, a wooden dowel and duct tape.

In this activity, learners compare the ancient Egyptian system of measurement, which was based on body lengths, to the customary and metric systems used today.

In this activity, learners use multiplication skills to get groups of aliens safely back to their planet.

In this activity, learners explore the concepts of natural selection and observable traits in a game that can be played at home.

In this activity, learners make pretend snakes and use them to explore estimation and measurement. Learners roll out clay snakes and estimate and measure their lengths and diameters.

In this math activity, learners explore probability as they play a game. Learners will categorize everyday events as either impossible, possible or certain.

In this math activity, learners make their own bubble wands and determine if the size of the wand affects the number of bubbles it produces.