Maths- Area and perimeter lesson 1 slides
This is actually a recap session from Year 5 because we think you might have missed out on this due to lockdown last time.
What can you remember from previous work with perimeters? Can tell me what the
word ‘perimeter’ means? (the distance round a closed shape) Can recall the rule for finding the perimeter of a rectangle? Can you write it? (P = 2(a + b))
What would happen if we needed to find the perimeter of a square? (Remember all sides are equal on a square) If the rectangle is a square then the perimeter of the square is four times the length of one side or P = 4a.
Look at Slide 1 on the PP showing the example of a swimming pool. We have roped off the diving section with a dotted line. What is the perimeter of the
diving section? (8 units) What is the perimeter of the swimming section? (12 units)
When we add the perimeters of the two sections, why is the total distance around the pool not 20 units? Discuss that the ‘rope’ or dotted line of two units was counted in the total for both the swimming section and the diving section, so four units must be subtracted from the total.
Display: Slides 2–3 – repeat for other ‘roped off’ sections of swimming pools.
Please pick an appropriate challenge from the activity book to complete Calculating perimeters
Spellings– Please practise your spellings for this week. Try and write them into sentences. Can you include more then one in each sentence?
Science
Starter –What is adaption? How might an owl have adapted to its environment? (See PP) Darwin’s finches
Today we are beginning to plan an investigation into adaption. Based on Darwin’s findings in the Galapagos Islands. He discovered that finches (a type of bird) had began to evolve (evident in their beaks) into different species despite all coming from the same ancestor. This was due to a response to their environmental factors and food sources.
What can you remember about Charles Darwin? You might have to think back to Year 2!.Watch the video http://www.bbc.co.uk/teach/charles-darwin-evolution-and-the-story-of-our-species/z7rvxyc
Scroll through the website until you reach the part about his early life and his travels to the Galapagos Islands, focusing on the work on finches. What this tells us about evolution and adaptation? Use Evolution teaching resource: spot the adaptations in Darwin’s finches | Natural History Museum (nhm.ac.uk) to specifically look at the finches up close and how the size and shape of their beaks are dependent on their food preferences and specialisations.
The question we are going to be looking at is : Does beak type affect the type of food a bird is able to eat?
We are only planning the investigation this week and conducting it next week. We will use different size beans (small, medium and large) and different types of utensils to grab the beans (e.g. pegs, tweezers-broad/fine and chopsticks). This will be done in 1 minute. Why might we have to repeat the experiment to find the average?
I would like you to fill out the planning template. Think carefully about what we are changing (variables) and what we will keep the same (constants.) More importantly, what do you predict will happen? planning template
