Area of Kites and Trapezia

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(Difference between revisions)
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| colspan="3" |'''Starter'''
| colspan="3" |'''Starter'''
* Recap on the recipe.
* Recap on the recipe.
-
* Recap on the formulae.
+
* Recap on the rules:
 +
** Area of rectangle = l x w
 +
** Area of triangle = half x base x height.
 +
** Area of parallelogram = base x height.
* Quick worksheet on area of six shapes.
* Quick worksheet on area of six shapes.
|-
|-
| colspan="3" |'''Development activities''' (including AFL)
| colspan="3" |'''Development activities''' (including AFL)
* Area of Kite
* Area of Kite
-
** Remember that yesterday we said all triangles are half a rectangle. They are also half a kite.
+
** Who can tell me what a kite is?  A quadirlateral with two adjacent sides of equal length. 
 +
** What does adjacent mean? Next to each other.
 +
** Draw a kite with length 20cm  and width 8cm.
 +
** Draw a rectangle around it with the same dimensions.
 +
** Remember that yesterday we said all triangles are half a rectangle.
 +
** Rule for the area of a triangle is half length x width.  So the area of a kite is half length x width.
 +
** Area of a kite = half x length x width 
* Area of Trapezium
* Area of Trapezium
 +
** Who can tell me what a trapezium is? A quadirlateral with only one pair of parallel sides.
 +
** Area = Half (a + b) x h
|-
|-
| colspan="3" |'''Plenary / AFL'''
| colspan="3" |'''Plenary / AFL'''

Revision as of 13:18, 26 November 2009

Heathside Schools Mathematics Department Lesson Plan Outline
Teacher: Mr G Wilson Class: 8A3 Date: 26-Nov-09
Module/Topic: KS3: Perimeter, Area and Volume / Area of Kite and Trapezium Room: T3 Lesson: 13:55-14:45
Lesson Objectives (including AFL)
  • Recap on area of a rectangle, triangle, and parallelogram.
  • Recap on EB's recipe:
    1. Decide on the shape.
    2. Write down the correct rule.
    3. Replace the letters with numbers.
    4. Work out the answer.
    5. Give the correct units.
  • Area of a Kite
  • Area of a Trapezium
Success Criteria
  • Everyone able to remember and apply the area frmulae for all the shapes discussed.
Class Management Objectives
  • Try to follow EB's example from yesterday as closely as possible, in terms of quiet and control achieved.
Lesson Context (including AFL) Prior Pupil Knowledge
  • Area of Rectangle, Triangle and Parallelogram
  • Perimeter
Resources/Equipment
  • Whiteboard pens
  • EW pen
  • 35 copies of Starter worksheets
  • This lesson plan (two hard copies)
  • Whiteboard rubber
Provision for EAL/SEN/G&T
  • Stuart Hooker brings his own laptop.
  • Extension sheet on subtracting areas for the more talented students.
Health and Safety
  • No abnormal risks -- today will be just worksheet and whiteboard.
Named Students
  • Stuart Hooker (ASD)
  • Paige Barrow (BESD)
  • John Sadikoglu (SLD)
  • Freddie Thompson (BESD)
  • Jake Gaywood (SLD)
  • Curtis Hillier (BESD)
  • Reece Lowden (Moderate LD)
  • Daniel Quest (Language)
  • Emily Ross (SLD)
Starter
  • Recap on the recipe.
  • Recap on the rules:
    • Area of rectangle = l x w
    • Area of triangle = half x base x height.
    • Area of parallelogram = base x height.
  • Quick worksheet on area of six shapes.
Development activities (including AFL)
  • Area of Kite
    • Who can tell me what a kite is? A quadirlateral with two adjacent sides of equal length.
    • What does adjacent mean? Next to each other.
    • Draw a kite with length 20cm and width 8cm.
    • Draw a rectangle around it with the same dimensions.
    • Remember that yesterday we said all triangles are half a rectangle.
    • Rule for the area of a triangle is half length x width. So the area of a kite is half length x width.
    • Area of a kite = half x length x width
  • Area of Trapezium
    • Who can tell me what a trapezium is? A quadirlateral with only one pair of parallel sides.
    • Area = Half (a + b) x h
Plenary / AFL
  • WWW (what went well?)
  • EBI (even better if...)
Cross-curricular links (Literacy, Numeracy, Citizenship, Spirituality, ICT)
Homework
  • None, as a one-off special.
  • If time, special mention for previous homework heroes.
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