Guided Lessons

# Geometry Real Word Problems

Students will solve area problems by multiplying side lengths for rectangular shapes in real world contexts.

No standards associated with this content.

No standards associated with this content.

Which set of standards are you looking for?

Students will be able to use the length-times-width strategy to solve rectangular area problems in real-world contexts.

(5 minutes)
• Hold up a flat hand to the class and place a rectangular piece of paper over it that nearly covers its area.
• Explain how the rectangle’s area, the amount of space it takes up is Approximate, or almost, the area of your hand.
• Ask the class, “What do you know about area?” and take student responses.
(10 minutes)
• Define AreaAs the space inside a shape. Explain that uses in life include: Carpeting a room, sodding a lawn, or building a deck.
• Show how to measure the paper rectangle with a ruler using the A = l x w formula, explaining that you are really determining how many square units are in the area. Explain that the answer will be in square units and how to write that (for example: 3cm2).
• Supply paper, rulers, and scissors to your students. Have them cut out a rectangle with approximately the same area of their hand.
• Students will measure their rectangle's area and share their calculations with a partner.
(10 minutes)
• Distribute the Areas Around A Room worksheet and go over the instructions with your students.
• Complete the first exercise as a class, taking student responses and answering any clarifying questions.
(15 minutes)
• Instruct students to complete the remaining exercises with a partner or in small groups.

Support

• Students can work in teams where some members measure and others record measurements.
• Students may shadow members of another group, with the option to return to their original team.
• Provide pre-drawn rectangles using whole number sides that students may measure.

Enrichment

• Students may replace the Areas Around A Room exercise options with other items to measure.
• Measurements may be taken in smaller increments, like centimeters or 1/8 of an inch.
• You will need a computer with internet access to project a video example of measurement.
• Use a projector to display the video to the class.
(5 minutes)
• Ask students to use their work as an example to explain the area of their paper rectangles.
• Have students explain any problem from the Areas Around A Room worksheet.
(5 minutes)
• Students can share out clues, problems or wondering reflections, or leading with sentence frames. For example, “I could tell…" "I had a challenge with…" or "I wonder if…”