1st Grade Mathematics

In this video, Jackson uses a number line to learn how to subtract.

In this video, Alex learns to count to 4 and 5.

In this video, Marta learns how to compare groups of items, without counting them, to determine which group has more.

In this video, Emily writes a subtraction sentence to find the missing part of a whole.

In this video, Jackson uses cube trains to learn how to count on to solve addition problems.

In this video, Emily uses an addition fact to solve a subtraction problem.

In this video, Jada uses an addition fact and counting cubes to solve a subtraction problem.

In this video, Alex learns how to use doubles to solve a series of addition problems.

In this video, Marta learns to fill a 10-frame model to solve an addition problem.

In this video, Marta, Alex, Jackson, Daniel and Jada learn how to collect and organize survey data using a simple tally chart.

In this video, Marta uses data collected in a T-chart to make a picture graph displaying her friends' favorite vegetables.

In this video, Marta uses 10-frames to count to 120 by tens.

In this video, Jada and Alex learn to count consecutive numbers on a number chart.

In this video, Daniel learns how to count two-digit numbers using groups of 10 (tens) and lefotver 1s (ones).

In this video, Alex uses place-value blocks to learn how the 10s and 1s place digits increase or decrease as values are added or removed from 2-digit numbers.

In this video, Alex learns how to solve problems by making a list of questions to organize possible answers to find the correct answer.

In this video, Jackson learns how to count hours using the hour and minute hands on a clock.

In this video, Jackson learns how to tell time using the hour and minute hands on a clock.

In this video, Carlos uses a variety of 2-D shapes (triangle, rhombus, square) to solve puzzles involving other geometric shapes.

In this video, Carlos learns the various attributes of the solid figures cone, circle, triangular prism, rectangular prism, and circle.