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Illustrative Mathematics
Find the Angle
This a fun problem for young geometers to play with while gaining important insight into deductive reasoning. Some will find the answers very quickly, others might take a less direct path, but all will use their knowledge of the sum of...
Curated OER
Signs and Symbols to Acquire Language
Students utilize deductive reasoning to decipher unfamiliar words and sounds. They acquire high-frequency words by viewing street signs and playing phonics games. Students This lesson is intended for students acquiring a foreign language.
Curated OER
Where are Grandma's Teeth?
Students practice using prepositions and deductive reasoning. In this preposition game, students work in groups to determine where Grandma has lost her dentures. Students eliminate places as clues are revealed.
Illustrative Mathematics
Points equidistant from two points in the plane
Young geometers apply their deductive reasoning skills and knowledge of proving triangles congruent in a task that asks them to prove if a point lies on the perpendicular bisector of a segment, then it is equidistant from the endpoints...
Curated OER
Comparing Edible Communities
Students explore the components of a community by creating analogies between aspects of a community and ingredients within a recipe. They view and discuss pictures, write analogies, and generate a product from a recipe.
Curated OER
Problem Solving: Steps and Strategies
Young scholars explore the concept of problem solving strategies. In this problem solving strategies lesson plan, students discuss methods for solving problems such as re-reading a problem, stating the facts, drawing a picture and so on....
Curated OER
Iterating Linear Functions
Students use a spreadsheet to investigate data. In this algebra lesson, students collect and graph data on a coordinate plane. They explain properties of a linear equation both algebraically and orally.