EngageNY
Positive and Negative Numbers on the Number Line—Opposite Direction and Value
Make your own number line ... using a compass. The first installment of a 21-part series has scholars investigate positive and negative integers on a number line by using a compass to construct points that are the same distance from zero...
EngageNY
The Opposite of a Number
It's opposite day! The fourth installment of a 21-part module teaches scholars about opposites of integers and of zero. Number lines and real-world situations provide an entry point to this topic.
EngageNY
Properties of Parallelograms
Everyone knows that opposite sides of a parallelogram are congruent, but can you prove it? Challenge pupils to use triangle congruence to prove properties of quadrilaterals. Learners complete formal two-column proofs before moving on to...
Curated OER
Triangles
For this triangles worksheet, 10th graders solve 3 extensive informal geometry problems that involve triangles. First, they sketch a triangle, selecting 3 of the sides and constructing 3 midpoints. Students then draw each of 3 medians by...
Curated OER
Solving Linear Equations
For this linear equations worksheet, students solve and complete 20 different problems that include using the order of operations. First, they distribute to remove the parentheses and combine like terms. Then, students move variables and...
Curated OER
Geometry - Angles Overview
Learners address 14 questions that include naming all pairs of opposite and supplementary angles for sets of intersecting lines and then, finding the measure of the unknown angle. They determine the measure of the angle that is...
Curated OER
Trigonometry Ratios in Right Triangles
In this trigonometry ratios in right triangles worksheet, 10th graders solve 6 different right triangle problems. First, they find the values of x and y in each triangle, rounding each to the nearest tenth. Then, students locate the...
Global Oneness Project
Our Shared Humanity
Ann Shin's award-winning documentary, My Enemy, My Brother introduces viewers to Zahed Haftlang and Najah Aboud, two child soldiers on opposite sides during the Iran-Iraq war. After viewing the film, class members are asked to reflect on...
EngageNY
Incredibly Useful Ratios
Start the exploration of trigonometry off right! Pupils build on their understanding of similarity in this instructional activity that introduces the three trigonometric ratios. They first learn to identify opposite and adjacent...
Illustrative Mathematics
Midpoints of the Sides of a Paralellogram
This task asks learners to prove that the segment joining the midpoints of two sides of a parallelogram is both congruent and parallel to an adjacent side of the parallelogram. The activity would be good to use in a discussion about how...
Curated OER
Understanding Categories of Shapes
What are these shapes? Here are four shapes with some common attributes: they each have four parallel sides and four vertices. Scholars identify a rectangle, rhombus, square, and quadrilateral. Because there is an explanation written...
Curated OER
Natural Similarities and Opposites in Two Poems by Joseph Ceravolo
For this antonyms and synonyms worksheet, students look in two short poems by Joseph Ceravolo to find opposite or contradictory statements that express many sides of a feeling. Students answer 25 short answer questions about the poems.
Perkins School for the Blind
The Country Egg
Because most children with visual impairments don't reach and grab things at a young age the way sighted children do, they need additional supports to build up their fine motor skills. Here, they work on the pincer grasp, using their...
Illustrative Mathematics
Area of a Trapezoid
Here is a straightforward example of how to apply the Pythagorean Theorem to find an unknown side-length of a trapezoid. Commentary gives additional information on proving that the inside of the trapezoid is a rectangle, but is...
Curated OER
Logical Relationship of Postulates & Theorems
For this postulates and theorems worksheet, students explore a concept map containing information about angles and sides, alternate interior angles, and diagonals of a parallelogram. They use the concept map to prove theorems dealing...
Curated OER
Classifying Triangles
In this classifying triangles activity, 10th graders solve 9 various problems that classify triangles into categories. First, they refer to the figure shown of an isosceles triangle with two line parallel. Then, students name the sides,...
Curated OER
Opposite-Word Concentration
Young scholars participate in an opposite-word concentration game. In this grammar lesson, students use an old deck of playing cards and glue small squares of opposite illustrations to the back of each card. Young scholars make as many...
Inside Mathematics
Quadrilaterals
What figure is formed by connecting the midpoints of the sides of a quadrilateral? The geometry assessment task has class members work through the process of determining the figure inscribed in a quadrilateral. Pupils use geometric...
Center for Math and Science Education
Volcano Model
When middle school earth science classes are covering volcanoes, they can cut out and construct a miniature model of a stratovolcano and its surrounding town. From the town side, the external features of the volcano appear. On the...
PhysEdGames
Red-Light Green-Light
Choose a person to be the stoplight. Have everyone else line up on the opposite side of the gym. If "green light" is called out, the players run toward the stoplight person until they hear "red light," which means stop. Anyone that does...
West Contra Costa Unified School District
Law of Sines
Laws are meant to be broken, right? Learners derive the Law of Sines by dropping a perpendicular from one vertex to its opposite side. Using the Law of Sines, mathematicians solve for various parts of triangles.
Reed Novel Studies
The Outsiders: Novel Study
The greasers and Socs, both gangs in S.E. Hinton's The Outsiders, came from opposite sides of the tracks, yet seemed to live in two different worlds. Scholars answer comprehension questions, create alliterations, and work with vocabulary...
Illustrative Mathematics
Is This a Parallelogram?
If both pairs of opposite sides of a quadrilateral are congruent, is the quadrilateral a parallelogram? This task asks learners to determine the answer and to support their answer with a proof. The resource includes a commentary for...
Curated OER
Comparison of Juan Bautista de Anza and George Washington
Fifth graders discover that Anza and Washington lived at the same time but on opposite sides of the American Continent. They identify differences and similarities in their lives. They present the data in an illustrated time line