Illustrative Mathematics
Right Triangles Inscribed in Circles I
One of the basic properties of inscribed angles gets a triangle proof treatment in a short but detailed exercise. Leading directions take the learner through identifying characteristics of a circle and how they relate to angles and...
CK-12 Foundation
Direct Variation: Value of a Painting
Help your pupils find a pattern of direct variation. Young scholars use input-output pairs to find a constant of variation and then write the equation. As they build their equations, the interactive lesson provides feedback.
Balanced Assessment
Survey Says
Examine statistical data that shows an overlap in responses. The data tallies over 100% and learners interpret this data characteristic. They then create a graph to represent the data.
Curated OER
Survey Says...
Young statisticians collect, organize, and present data to illustrate responses to a survey question. They write and conduct the survey. They finish by presenting the results in the form of a graph.
EngageNY
Real-World Positive and Negative Numbers and Zero
Class members investigate how positive and negative numbers are useful in the real world. Individuals first read a short passage and identify terms indicating positive and negative numbers. They consider situations involving positive...
Kenan Fellows
Least Squares Linear Regression in R
The task? Determine the how effective hospitals are at reducing the rate of hospital-acquired infections. The method? Data analysis! Using an open source software program, individuals use provided data and create scatterplots to look for...
Workforce Solutions
Plan a Vacation
Challenge scholars to plan a vacation with a $5,000 budget. Learners review costs of transportation, meals, and entertainment while considering the number of people and destination. Worksheets provide information and well-organized...
CK-12 Foundation
Add and Subtract Decimals with Front-End Estimation: Wooden Beams
A six-question interactive tasks mathematicians to solve addition and subtraction problems using front-end estimation. Question types consist of multiple-choice and true or false. A set of wooden beams that can be measured using moveable...
Illustrative Mathematics
Satellite
Learners practice relating rules of trigonometry and properties of circles. With a few simplifying assumptions such as a perfectly round earth, young mathematicians calculate the lengths of various paths between satellite and stations....
Illustrative Mathematics
Ice Cream Cone
Every pupil with a sweet tooth will be clamoring for this lab and analysis, particularly when they're allowed to eat the results! Volume and surface area formulas for cones are developed from models, and then extended to the printing of...
Illustrative Mathematics
Joining Two Midpoints of Sides of a Triangle
Without ever using the actual term, this exercise has the learner develop the key properties of the midsegment of a triangle. This task leads the class to discover a proof of similar triangles using the properties of parallel lines cut...
Balanced Assessment
Smaller, Larger, In-Between
Build a solid understanding of rational number relationships by asking class members to use various skills to order decimals, fractions, and numeric power expressions. Using the resource, they find that the fractions do not have an...
CK-12 Foundation
Parallel and Skew Lines: Parallel or Not?
There's nothing askew about an informative resource. Pupils adjust one of two lines in an interactive to determine if the lines are parallel or skew. They answer a set of challenge questions about the lines.
CK-12 Foundation
The Real Numbers: Adding Electrons
Get a charge out of a great resource! Scholars use an interactive to explore addition and subtraction of integers. They add or remove electrons in an atom model to consider its charge.
Kenan Fellows
Multivariate Least Squares Regression Model with Variable Selection
The risk of contracting an infection in the hospital is low, but it does happen. Learn what risk factors have the highest correlation with hospital-acquired infections in the final lesson of a three-part series. Using the open source R...
Concord Consortium
Going Up
Going on up—and up and up! An open-ended task asks learners to model the movement of an amusement ride with parametric equations. They then analyze their equations to determine how the shadow of the ride's car moves as it rises at a...
CK-12 Foundation
Values Written as Powers: Binary Numbers 25 to 31
A five-question interactive boosts proficiency in working with binary numbers. Multiple-choice, short answer, and discussion questions challenge mathematicians to write numbers 25 through 31in exponential and binary form. An adjustable...
CK-12 Foundation
Prime Factorization: Chocolate Chip Factoring
An interactive resource challenges mathematicians to show what they know about prime factorization. Five multiple-choice, true or false, and discussion questions use chocolate chip cookies to set a real-world application of the concept.
CK-12 Foundation
Addition of Integers: Number Blocks
A five-question interactive provides a horizontal number line where integers are stacked on top of one another to find solutions of addition problems. Mathematicians move numbers to the numbers line, as numbers build higher, the sum of...
Curated OER
Quick Questions: Open-Ended
Students conduct an open ended survey and analyze the data they found. In this open-ended survey lesson plan, students ask others their open ended questions and then organize their results based on the most common, least common, and...
Curated OER
Math and Fishing Responsibly
In this math and fishing responsibly worksheet, students read about the guidelines for fishing responsibly, then answer 8 questions about the decisions that must be made when fishing for 3 kinds of fish.
Curated OER
Six Evaluating Algebraic Expressions Practice for the Math Regents Exam
In this substitution worksheet, learners evaluate six algebraic expressions. These six problems are practice for the math regents exam and the solutions are provided.
Curated OER
Quiz 4A: Polite Questions and Typical Responses
In this polite questions worksheet, students read each of 8 situations. Students write a polite question and give a typical response for each one. Students use the words: can I, may I, can you, could you and would you.
Curated OER
Open & Operating: The Federal Reserve Responds to September 11
Young scholars investigate the purpose of a central bank. In this economics/consumer mathematics lesson, students explore the actions of the Federal Reserve after the events of September 11, 2001. Young scholars investigate the role of...