Videos
![Count by 10s to 120](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_AOaCFb9v-720.jpg?itok=UH0fZIA9)
In this video, Marta uses 10-frames to count to 120 by 10s.
![Collect and Represent Data](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_1EjTb1Z5-720.jpg?itok=3qAKxXIn)
In this video, Marta uses data collected in a T-chart to make a picture graph displaying her friends' favorite vegetables.
![Organize Data Into 3 Categories](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_QgGLiSaA-720.jpg?itok=03-CTVJn)
In this video, kids learn how to collect and organize survey data using a simple tally chart.
![Fill a 10-Frame Model to Add](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_8zwSWoWK-720.jpg?itok=P8tlhQsZ)
In this video, Marta learns to fill a 10-frame model to solve an addition fact.
![Doubles Plus 2](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_7BPGzLoV-720.jpg?itok=nF7eq02G)
In this video, Alex learns how to use doubles to solve a series of addition facts.
![Using Addition to Subtract Part 2](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_DOWR4Wid-720.jpg?itok=lGh1gO4i)
In this video, Jada uses an addition fact and counting cubes to solve a subtraction fact.
![Using Addition to Subrtract Part 1](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_4Is1UxZ6-720.jpg?itok=dx4BuJbn)
In this video, Emily uses an addition fact to solve a subtraction fact.
![Solve Problems Using Put Together/Take Apart](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_qqxoZ3hW-720.jpg?itok=PyuI5jG8)
In this video, Jackson uses cube trains to learn how to count on to solve addition problems.
![Solve Problems Using Put Together/Take Apart](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_qqxoZ3hW-720.jpg?itok=PyuI5jG8)
In this video, Emily writes a subtraction sentence to find the missing part of a whole.
![Solve Problems and Compare Situations](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_prKPfOzZ-720.jpg?itok=m02LK4b9)
In this video, Marta learns how to compare groups of items, without counting them, to determine which group has more.