The distributive property of multiplication over addition allows us to eliminate the grouping symbol, usually in the form of parenthesis. Illustrates the basic pattern or formula and how to apply it.
Use this tutorial to learn what imaginary and complex numbers are, how to write them, and how to perform operations with them. Offers step-by-step examples, video explanations of the examples, and practice questions with answers.
In this video from Cyberchase, Harry must score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans.
This problem is intended to reinforce the geometric interpretation of distance between complex numbers and midpoints as modulus of the difference and average respectively.
Find out how to solve a word problem by constructing a numerical expression. [1:21]
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This resource provides a definition and demonstration of the cross product.
Cyberchase video introduces the idea of inverse operations as Bianca imagines herself as a spy. [3:26]
How do you divide decimals by decimals? How can your estimation and number sense skills help you? Students work on answering these questions as they continue their work with dividing decimals.
SWBAT show their understanding of the divisibility rules.
Franklin works with Laverne to create a budget for a job painting a room, in this video segment from TV 411.
Grades 3-6. The CyberSquad solves the problem of giving equal parts of two apples to Cerberus, the three headed dog of Greek mythology, in this video from Cyberchase.
The CyberSquad reviews their budget for the second day of their film shoot in this video from Cyberchase.
In this video segment from Cyberchase, the CyberSquad compares their budget with their actual spending from day three of their film shoot.
In this Cyberchase video segment, the CyberSquad figures out how to incorporate a new scene into their film while staying within their budget.
In Module 2 students apply patterns of the base ten system to mental strategies and a sequential study of multiplication via area diagrams and the distributive property leading to fluency with the standard algorithm. Students move from whole numbers to multiplication with decimals, again using place value as a guide to reason and make estimations about products. Multiplication is explored as a method for expressing equivalent measures in both whole number and decimal forms. A similar sequence for division begins concretely with number disks as an introduction to division with multi-digit divisors and leads student to divide multi-digit whole number and decimal dividends by two-digit divisors using a vertical written method. In addition, students evaluate and write expressions, recording their calculations using the associative property and parentheses. Students apply the work of the module to solve multi-step word problems using multi-digit multiplication and division with unknowns representing either the group size or number of groups. An emphasis on the reasonableness of both products and quotients, interpretation of remainders and reasoning about the placement of decimals draws on skills learned throughout the module, including refining knowledge of place value, rounding, and estimation.
Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.
In this video segment from Cyberchase, Inez estimates whether she has enough jelly beans in her large container to decorate all of the cookies in her batch.
Brush up on your math skills relating to writing algebraic expressions then try some practice problems to test your understanding.
A game that reviews grouping in fives and tens, and adding and subtracting. The instuctions are clear and include a video of how to play.
Two methods are demonstrated for finding the inverse of a matrix. The examples are detailed and easy to follow. Several interactive examples are also provided.
Students worked on telling time to the hour and half hour earlier in the year. Now they will apply their understanding of counting by 5s to telling time to the five minute interval.