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Exploring the Properties of Parallelograms: A Hands-On Activity

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This lesson focuses on recognizing and applying the properties of the sides and angles of parallelograms. Students will measure all four sides and angles using rulers and protractors, then draw and analyze the diagonals. By measuring the lengths of the diagonals and observing the angles formed, students will gain a deeper understanding of parallelogram properties, including relationships between opposite sides, angles, and the effects of having right angles. The bellringer activity engages students in solving for unknowns based on their measurements.

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Exploring the Properties of Parallelograms: A Hands-On Activity

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Presentation Transcript

  1. Parallelograms Recognize and apply properties of the sides of parallelograms

  2. Bellringer Find X for each figure

  3. Parallelogram • Measure all 4 sides with a ruler • Measure all 4 angles with a protractor • Draw the two diagonals • Measure the length of the two diagonals • Measure the lengths of the diagonal parts • Measure the 4 angles created by the diagonals in the middle and the 8 angles created by the diagonals at the vertices of the parallelogram

  4. Properties: Opposite sides of a parallelogram are ____________

  5. Opposite angles in a parallelogram are ____________________

  6. Consecutive angles in a parallelogram are ______________

  7. If a parallelogram has one right angle, it has ______ right angles

  8. The diagonals of a parallelogram ________________________________

  9. 2b+3 K J R 3a 21 70º 30º L M 45 m<MJK= m<JML= M<JKL= m<KJL= a= b=

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