This unit introduces the concepts of functions (how quantities relate to each other), and characteristics of functions.
1.1 Independent and Dependent Quantities
Explanation:
Khan video: Dependent & independent variables
Khan video: Dependent & independent variables: graphing
Khan video: End behavior of algebraic models
Website Resource: Graphing Stories
Practice Problems:
Khan exercise: Independent versus dependent variables
Khan exercise: End behavior of algebraic models
IXL: Alg. Q.3 Identify independent and dependent variables
Desmos: Function Carnival (teacher use only)
Desmos Activity: Graphing Stories (teacher use only)
1.2 Recognizing Functions
Explanations:
Khan video: What is a function? (optional)
Khan video: Recognizing functions from graph
Khan video: Does a vertical line represent a function?
Khan video: Recognizing functions from table
Khan video: Recognizing functions from verbal description
Khan video: Recognizing functions from verbal description word problem
Khan video: Discrete and continuous random variables
Practice problems:
Desmos Activity: Turtle Crossing (teacher use only)
Khan exercise: Recognize functions from graphs
Khan exercise: Recognize functions from tables
IXL: Algebra Q.4 Identify functions (from plotted points, list of points, table, mapping)
1.3 Domain and Range
Explanations:
Notes | Annotated |Video: Youtube | SafeShare.tv
Khan video: Plotting inequalities
Khan video: Plotting an inequality example
Khan video: Inequalities word problems
Khan video: Intervals and interval notation
Khan video: Worked example: domain and range from graph (closed interval with inequality)
Khan video: Worked example: determining domain word problem (real numbers) (closed interval)
Khan video: Worked example: determining domain word problem (positive integers) (closed interval)
Khan video: Worked example: determining domain word problem (all integers) (closed interval)
Practice problems:
IXL: Q.2 Domain and range of relations (2CG) (discrete data only)
Khan exercise: Inequality from graph (single inequality)
Khan exercise: Plotting inequalities (single inequality)
Khan exercise: Inequalities word problems (single inequality)
IXL: EE.3 Domain and range of absolute value functions: graphs (NV7) - (single inequality)
IXL: GG.2 Domain and range of radical functions: graphs (UXG) - (single inequality)
Desmos Activity: Domain and Range with both one direction and bound intervals - teacher use only
Khan exercise: Domain and range from graph (uses compound inequalities)
Khan exercise: Function domain word problems (uses compound inequalities)
Teacher resource:
Desmos activity: Cookie Functions
1.4 Function Notation
Explanation:
Khan video: Equations vs. functions
Khan video: Worked example: Evaluating functions from equation
Khan video: Worked example: matching an input to a function's output (equation)
Khan video: Worked example: evaluating functions from graph
Khan video: Evaluating discrete functions
Khan video: Worked example: evaluating expressions with function notation (honors)
Khan video: Worked example: matching an input to a function's output (graph)
Khan video: Worked example: two inputs with the same output (graph)
Khan video: Function notation word problem: bank (honors)
Khan video: Function notation word problem: beach (honors)
Practice problems:
Desmos activity: Carnival Functions, Part 2
Khan exercise: Evaluate functions
Khan exercise: Function inputs & outputs: equation (give after inverse operations has been mastered)
Khan exercise: Evaluate functions from their graph
Khan exercise: Function inputs & outputs: graph
Khan exercise: Evaluate function expressions (honors)
Khan exercise: Function notation word problems (honors)
IXL: Algebra Q.6 Find values using function graphs (score of 90)
IXL: Algebra 1: Q.16 Interpret the graph of a function: word problems
IXL: Algebra 1: Q.17 Interpret functions using everyday language
1.5 Functions: increasing, decreasing, and constant intervals; extrema
Explanation:
Khan video: Increasing, decreasing, positive or negative intervals (start the video at 2:34)
Khan video: Worked example: absolute and relative extrema
Khan video: Graph interpretation word problem: basketball
Practice problems:
Desmos Activity: Increasing/Decreasing Functions (teacher use only)
Khan exercise: Increasing and decreasing intervals
Khan exercise: Relative maxima and minima
Khan exercise: Absolute maxima and minima
1.6 Functions: positive and negative intervals and zeros
Explanation:
Khan video: Increasing, decreasing, positive or negative intervals (from 0:00 to 2:34)
Khan video: Worked example: positive & negative intervals
Khan video: Graph interpretation word problem: temperature
Khan video: Graph interpretation word problem: basketball
Practice problems:
Desmos Activity: Positive and Negative Intervals of a Function (teach use only)
Khan exercise: Positive and negative intervals
Khan exercise: Graph interpretation word problems
Review
Desmos Activity: Properties of a graph (sign/direction/concavity) (teacher use only) - ignore concavity slides
Adding Integers
Explanation
Card game: war
Practice problems
Desmos Activity: Adding Integers (using a number line) (teacher use only)
Demos Activity: Card Sort: Integer Chips (teacher use only)
Desmos Activity: Card Sort: Integer Chips Practice Day 48
Teacher use:
Desmos Activity: Adding Integers Splat!!!
Subtracting Integers
Explanation:
Desmos Activity:
In one day: Hot Air Balloon Model for Integer Operations (teacher use only)
In two days:
In three days:
Desmos Activity: Subtracting Integers
Practice problems:
Adding and Subtracting Integers
Adding and Integers Integers
Practice problems
Combing Like Terms
Explanation:
Khan video: Intro to combining like terms
Practice problems:
Khan exercise: Combining like terms with negative coefficients
ExamView Bank (purchase)
Multiplying and Dividing Integers
Explanation
Practice problems
IXL C.16 Integer multiplication rules
IXL C.17 Multiply integers
IXL C.22 Multiply and divide integers
ExamView Bank (purchase)
Mixed Review of All Operations with Integers
Explanation
Practice problems
Order of operations
Explanation:
Khan video: Evaluating expressions with two variables
Practice problems
Khan exercise: Evaluating expressions with one variable
Khan exercise: Evaluating expressions with multiple variables
ExamView Bank (purchase)