CK-12 Foundation
Ck 12: Elem Math: Determining Unknown Angles in Trapezoids
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems on finding the missing angles in a trapezoid.
CK-12 Foundation
Ck 12: Elem Math: Writing the Value of the Money in Each Purse
[Free Registration/Login may be required to access all resource tools.] Students practice looking at a picture of a purse and determining the total value of money in the purse.
CK-12 Foundation
Ck 12: Elem Math: Writing Prices of Items
[Free Registration/Login may be required to access all resource tools.] The video describes what the numerical value of money translates to in dollars and cents. The video is followed by additional problems for students to practice the...
CK-12 Foundation
Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit subtraction problem with regrouping. The video is followed by additional problems for students to practice the skills...
CK-12 Foundation
Ck 12: Elem Math: Adding Multiple One Digit Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to add multiple 1-digit numbers from a word problem. The video is followed by additional practice problems.
CK-12 Foundation
Ck 12: Elem Math: Adding Using Tens and Ones
[Free Registration/Login may be required to access all resource tools.] The video utilizes a picture model to describe how to add using tens and ones. The video is followed by additional practice problems.
CK-12 Foundation
Ck 12: Elem Math: Challenge Flow Chart Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows how to answer a series of addition or subtraction problems with numbers up to 1,000. The video is followed by practice problems.
CK-12 Foundation
Ck 12: Elem Math: Comparing Cups and Quarts by Pictures
[Free Registration/Login may be required to access all resource tools.] The video compares cups and quarts. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Comparing Pints and Quarts by Pictures
[Free Registration/Login may be required to access all resource tools.] The video compares pints and quarts. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Comparing the Capacity by Formula in Quarts Pints and Cups
[Free Registration/Login may be required to access all resource tools.] The video compares capacity by converting units of pints and quarts to cups to determine which value is the largest. The video is followed by practice problems to...
CK-12 Foundation
Ck 12: Elem Math: Completing the Addition Sentence Sums to 100
[Free Registration/Login may be required to access all resource tools.] The video shows how to work backwards to find the missing number in a 2-digit addition problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Completing the Subtraction Sentence Numbers Up to 20
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a model to determine the missing number in a subtraction problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Conversion Word Problems English Units
[Free Registration/Login may be required to access all resource tools.] Converting yards to feet and comparing two measurements. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Converting Coins Two Units
[Free Registration/Login may be required to access all resource tools.] The video shows how to count the sum of coins combining 2 units and converting that total into another unit. The video is followed by practice problems to assess...
CK-12 Foundation
Ck 12: Elem Math: Converting Coins With Compound Units
[Free Registration/Login may be required to access all resource tools.] The video shows how to count the sum of coins combining 2 units and converting that total into another unit. The video is followed by practice problems to assess...
CK-12 Foundation
Ck 12: Elem Math: Converting Dollars Into Cents
[Free Registration/Login may be required to access all resource tools.] Students practice converting money from dollars into cents.
CK-12 Foundation
Ck 12: Elem Math: Counting Different 2 D Shapes Within Simple Composite Figures
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine what shapes are used to create a given composite shape. The video is followed by practice problems.
CK-12 Foundation
Ck 12: Elem Math: Determining the Elapsed Time in Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine elapsed time in a word problem. The video is followed by a series of practice questions to assess student comprehension of the concept.
CK-12 Foundation
Ck 12: Elem Math: Determining Time Changes Answering in Numerals
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine elapsed time. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Expressing Decimals in Hundredths
[Free Registration/Login may be required to access all resource tools.] The video describes how to express a number in hundredths by moving the decimal to the right. The video is followed by additional problems for students to practice...
CK-12 Foundation
Ck 12: Elem Math: Fact Families Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows how to determine the missing number sentence when adding and subtracting 3-digit numbers by using fact families.
CK-12 Foundation
Ck 12: Elem Math: Mixed Review Place Value Problems Numbers to 10000
[Free Registration/Login may be required to access all resource tools.] The video describes how to find the difference of two numbers with digits in the thousands place. The video is followed by a series of practice questions to assess...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 6
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by six. The video is followed by a series of practice questions to assess...
CK-12 Foundation
Ck 12: Elem Math: Subtracting 3 Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a subtraction two-digit word problem with subtracting 3 numbers. The video is followed by additional problems for students to...