CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction (Numbers to 1,000)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to subtract two 3-digit numbers vertically with and without regrouping. [1:14]
CK-12 Foundation
Ck 12: Elem Math: Overview of Time Challenge
[Free Registration/Login may be required to access all resource tools.] Video discussing the process for solving word problems involving beginning and ending times and elapsed time. [2:03]
CK-12 Foundation
Ck 12: Elem Math: Overview of Time Challenge Ii
[Free Registration/Login may be required to access all resource tools.] Video discussing a process for solving word problems involving time, amount, and rate. [1:55]
CK-12 Foundation
Ck 12: Elem Math: Overview of Time Conversion Between Words and Numbers
[Free Registration/Login may be required to access all resource tools.] Video explaining how to state the time using words and when to express it using 'after' or 'before.' [3:04]
CK-12 Foundation
Ck 12: Elem Math: Overview Thousandths
[Free Registration/Login may be required to access all resource tools.] Video introducing the concept of thousandths written in decimal form. [1:11]
CK-12 Foundation
Ck 12: Elem Math: Problems Using Get One Free Word Problems
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem where you buy three of an item and get the fourth one free. [1:21]
CK-12 Foundation
Ck 12: Elem Math: Shopping and Purchasing Operations With Money
[Free Registration/Login may be required to access all resource tools.] A video showing how to add and subtract money amounts up to $10. [2:45]
CK-12 Foundation
Ck 12: Elem Math: Solving Multi Step Problems Involving Time
[Free Registration/Login may be required to access all resource tools.] A video showing how to solve a multi-step word problem involving money and time. [3:59]
CK-12 Foundation
Ck 12: Elem Math: Two Step Metric Capacity, Adding and Subtracting With Pictures
[Free Registration/Login may be required to access all resource tools.] Video explaining how to solve two-step word problems about metric capacity using pictures. [1:55]
CK-12 Foundation
Ck 12: Elem Math: Using Real Maps (English Lengths and Distances)
[Free Registration/Login may be required to access all resource tools.] Video explaining how to use a simple map to solve word problems involving distance. [1:08]
CK-12 Foundation
Ck 12: Elem Math: Using Two Operations in Money Problems
[Free Registration/Login may be required to access all resource tools.] Short video explaining how to use two arithmetic operations when solving word problems involving money. [0:46]
CK-12 Foundation
Ck 12: Elem Math: When Decimal Values Are Changed by Removing a Zero
[Free Registration/Login may be required to access all resource tools.] Short video explaining how to add a zero to a decimal number without changing the value. [0:50]
CK-12 Foundation
Ck 12: Elem Math: Writing Time Using 12 Hour and 24 Hour Clocks
[Free Registration/Login may be required to access all resource tools.] Video explaining how to read a clock and then convert the time to a 24-hour clock by adding 12 hours. [0:56]
CK-12 Foundation
Ck 12: Elem Math: Differences in Label Lengths (English Units)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to measure the lengths of two labels set along a ruler and find the difference between them. [0:36]
CK-12 Foundation
Ck 12: Elem Math: Distances Between Points on Multiple Routes (Metric Units)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to calculate the distance between different locations on a map using the information given, and how to convert between metric units. [2:23]
CK-12 Foundation
Ck 12: Elem Math: Dividing Fractions by Fractions
[Free Registration/Login may be required to access all resource tools.] Video explaining how to divide a fraction by a fraction. [1:02]
CK-12 Foundation
Ck 12: Elem Math: Elapsed Time Finding the End Time (Multiple Steps)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a multi-step word problem involving elapsed time where they must determine the end time. [1:06]
CK-12 Foundation
Ck 12: Elem Math: Evaluating Elapsed Time Multiple Days
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem involving elapsed time. [1:05]
CK-12 Foundation
Ck 12: Elem Math: Finding the New Amount Given the New Products Word Problems
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem where there is a change in productivity. [2:17]
CK-12 Foundation
Ck 12: Elem Math: Money Word Problems
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a word problem involving money. 0:46]
CK-12 Foundation
Ck 12: Elem Math: Multiple Label Length Comparison (English Units)
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to measure and compare the lengths of several labels lined up along a ruler. [0:56]
CK-12 Foundation
Ck 12: Elem Math: Multiple Rounds of Multiplication Long Multiplication
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a multi-step word problem involving multiplication. [1:58]
CK-12 Foundation
Ck 12: Elem Math: Multiple Units and Division Word Problems
[Free Registration/Login may be required to access all resource tools.] Video demonstrating how to solve a multi-step word problem involving division and multiplication. [2:02]
CK-12 Foundation
Ck 12: Elem Math: Multiplying Mixed Numbers With Cross Canceling
[Free Registration/Login may be required to access all resource tools.] Video explaining how to multiply mixed numbers by first converting them to improper fractions, canceling any common factors, then multiplying the fractions that are...