This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying and dividing.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying, and dividing with parentheses.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, and multiplying.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting with parentheses.

CK-12 Algebra Explorations is a hands-on series of activities that guides students from Pre-K to Grade 7 through algebraic concepts.

In this lesson, students play a game called "Clear the Board." Students use parentheses in order to make expressions equal a given total.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting - missing operation.

In this lesson students evaluate expressions and consider how the Order of Operations changes the value of the expressions. 

This lesson allows students to explore and make sense conceptually of the order of operations. This is remixable if you provide additional supports for the range of learners.

This lesson unit is intended to help teachers assess how well students are able to translate between words, symbols, tables, and area representations of algebraic expressions. It will help teachers to identify and support students who have difficulty in: recognizing the order of algebraic operations; recognizing equivalent expressions; and understanding the distributive laws of multiplication and division over addition (expansion of parentheses).

This lesson unit is intended to help you assess how well students are able to: Perform arithmetic operations, including those involving whole-number exponents, recognizing and applying the conventional order of operations; Write and evaluate numerical expressions from diagrammatic representations and be able to identify equivalent expressions; apply the distributive and commutative properties appropriately; and use the method for finding areas of compound rectangles.

Expressions

Type of Unit: Concept

Prior Knowledge

Students should be able to:

Write and evaluate simple expressions that record calculations with numbers.
Use parentheses, brackets, or braces in numerical expressions and evaluate expressions with these symbols.
Interpret numerical expressions without evaluating them.

Lesson Flow

Students learn to write and evaluate numerical expressions involving the four basic arithmetic operations and whole-number exponents. In specific contexts, they create and interpret numerical expressions and evaluate them. Then students move on to algebraic expressions, in which letters stand for numbers. In specific contexts, students simplify algebraic expressions and evaluate them for given values of the variables. Students learn about and use the vocabulary of algebraic expressions. Then they identify equivalent expressions and apply properties of operations, such as the distributive property, to generate equivalent expressions. Finally, students use geometric models to explore greatest common factors and least common multiples.

Students express the lengths of trains as algebraic expressions and then substitute numbers for letters to find the actual lengths of the trains.Key ConceptsAn algebraic expression can be written to represent a problem situation. More than one algebraic expression may represent the same problem situation. These algebraic expressions have the same value and are equivalent.To evaluate an algebraic expression, a specific value for each variable is substituted in the expression, and then all the calculations are completed using the order of operations to get a single value.Goals and Learning ObjectivesEvaluate expressions for the given values of the variables.

This short video and interactive assessment activity is designed to teach fifth graders about multiplying and dividing.

This short video and interactive assessment activity is designed to teach fifth graders about multiplying and dividing - missing number.

This short video and interactive assessment activity is designed to teach fifth graders about multiplying and dividing - missing operation.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying and dividing - missing operation.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting with parentheses ii.