Videos
![Lines](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_Oki9CrY7-720.jpg?itok=fFSlxca0)
Lines
In this video, Zeke learns basic geometry concepts about lines and points.
![Make Bar Graphs](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_Czsba880-720.jpg?itok=ggPoQRhx)
Make Bar Graphs
In this video, Daniel learns the steps to make his own bar graph to present data.
![Make Line Plots](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_cHM5FeNM-720.jpg?itok=pbxgcZk4)
Make Line Plots
In this video, Alex learns how to represent sets of data on a dot plot.
![Measure With Centimeters](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_oc34zDZA-720.jpg?itok=pdbJDmG5)
Measure With Centimeters
In this video, Jackson uses a centimeter ruler to estimate the length of various objects.
![Measure With Inches](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_BC2S365j-720.jpg?itok=yfTHEIqm)
Measure With Inches
In this video, Daniel uses inches on a ruler to estimate the length and height of various objects.
![Measure With Unit Angles](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_kELEKQpO-720.jpg?itok=wHd6ki2g)
Measure With Unit Angles
In this video, Zeke learns different ways of calculating angles using known angles.
![Mental Math: Find Quotients](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_cYIFAKxC-720.jpg?itok=lASrznSh)
Mental Math: Find Quotients
In this video, Carlos learns to divide large multiples of tens using basic division facts.
![Mental Math: Multiply Multiples of 10](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_9qMTgi93-720.jpg?itok=Bh45uxS0)
Mental Math: Multiply Multiples of 10
In this video, Alex learns how to multiply large multiples of ten using smaller numbers.
![Models and 3-Digit Numbers](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_dZKdc7Vf-720.jpg?itok=Bpp1G3q2)
Models and 3-Digit Numbers
In this video, Jada uses the place-value model for hundreds, tens and ones to learn about 3-digit numbers.
![Models to Subtract 2-Digit Numbers](/sites/infoplease.com/files/styles/scale220w/public/thumb_large_gvZ6wwMU-720.jpg?itok=n7_Xjfvw)
Models to Subtract 2-Digit Numbers
In this video, Marta learns various ways to subtract 2-digit numbers from 2-digit numbers, including regrouping and marking out.