CK-12 Foundation
Ck 12: Elem Math: Overview of Adding and Subtracting 3 Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three, two-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Overview Equivalent Decimals Ending in Zero
[Free Registration/Login may be required to access all resource tools.] The video shows a decimal and explains how any zero used as a place holder does not change the value of the decimal.
CK-12 Foundation
Ck 12: Elem Math: Using Symbol Maps With Compound Units
[Free Registration/Login may be required to access all resource tools.] Video explaining how to solve word problems involving the distance along the sides of polygons where the units must be converted. [2:58]
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Mixed Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] Video that shows the steps and describes how to add two mixed numbers by adding the whole numbers, then fractions, and putting it back together.
CK-12 Foundation
Ck 12: Elem Math: The Conversion of Decimals to Fractions
[Free Registration/Login may be required to access all resource tools.] Video explaining how to convert a decimal number into a fraction and vice versa. [1:05]
CK-12 Foundation
Ck 12: Elem Math: The Conversion of Fractions to Decimals
[Free Registration/Login may be required to access all resource tools.] Video explaining how to convert a fraction into a decimal. [0:59]
CK-12 Foundation
Ck 12: Elem Math: The Conversion of Mixed Numbers Into Decimals
[Free Registration/Login may be required to access all resource tools.] Video explaining how to convert a mixed number into a decimal. [1:00]
CK-12 Foundation
Ck 12: Elem Math: Using Scales to Find and Compare Weights (Metric Units)
[Free Registration/Login may be required to access all resource tools.] Video explaining how to read a scale to determine weight in metric units and how to compare the weights of objects. [3:26]
CK-12 Foundation
Ck 12: Elem Math: Overview Sum of the Angles of a Triangle
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on funding the sum of angles in a triangle.
CK-12 Foundation
Ck 12: Elem Math: Beginning Time in 5 Minute Intervals: Word Problems
[Free Registration/Login may be required to access all resource tools.] A video showing how to solve a multi-step word problem involving 5-minute intervals of elapsed time. [1:56]
CK-12 Foundation
Ck 12: Elem Math: Finding the Meeting Time Given Total Distance and Two Rates
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem where they must calculate at what time two cars will meet when they are traveling at different speeds from different...
CK-12 Foundation
Ck 12: Elem Math: Coins and Bills Ii
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem involving coins and bills. [2:11]
CK-12 Foundation
Ck 12: Elem Math: Estimate by Inches and Feet (Grade 5)
[Free Registration/Login may be required to access all resource tools.] This site offers two videos and a set of practice questions on estimating by inches and feet using descriptions and images.
CK-12 Foundation
Ck 12: Elem Math: Overview of Area
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on area.
CK-12 Foundation
Ck 12: Elem Math: Overview of Basic 3 D Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of three dimensional figures.
CK-12 Foundation
Ck 12: Elem Math: Overview of Before and After Time
[Free Registration/Login may be required to access all resource tools.] The video is an overview of finding elapsed time first by rounding to even times to count the elapsed time, and then showing how to subtract the time by borrowing...
CK-12 Foundation
Ck 12: Elem Math: Overview of Capacity Ii Metric Units
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on metric capacity.
CK-12 Foundation
Ck 12: Elem Math: Overview of Rectangles Squares Circles and Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on various two dimensional shapes including rectangles, squares, circles and triangles.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers Up to 10
[Free Registration/Login may be required to access all resource tools.] The video explains subtraction and uses a model to show the process of subtracting numbers less than ten. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Overview Thousandths
[Free Registration/Login may be required to access all resource tools.] The video uses a model to describe the relationship from one whole to one thousandth written as a fraction and a decimal.
CK-12 Foundation
Ck 12: Elem Math: Classifying Triangles Based on Equal Sides
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on how to classify triangles based on side length.
CK-12 Foundation
Ck 12: Elem Math: Overview Equivalent Decimals Ending in Zero
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on equivalent decimals.
CK-12 Foundation
Ck 12: Elem Math: Overview Hundredths
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on decimal place value to the hundredths.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 1000
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on addition with sums up to one thousand.