Extension: Session 8 - Mastery
To explore some challenging levels in Rapid Router to further develop algorithmic thinking and mastering of sequence, selection and looping
Lesson guide
These are extension levels intended to provide a challenge for the most keen and able pupils. This lesson focuses on the Limited Blocks (51 - 60) and some of the Blockly Brain Teasers (68 - 79). Don't forget that you can see the solutions to all Rapid Router levels by clicking solve when you are logged in as a teacher.
Introduction (10 mins)
Some pupils might have started looking at Limited Blocks last lesson so you might like to start with a later level
Show level 54 and point out that you have limited blocks to solve these levels
Without a forward block, the obvious solution might be to have a repeat loop that repeats left-right-right-left or right-left-left-right but you only have one right block so you can't do this
Hint: what is a loop used for? Notice that you can have more than one loop and you can put a loop inside another loop.
Limited Blocks (20 mins)
Once pupils have got the idea, ask them to try levels 54 - 60. They might like to work in pairs.
Brain Teasers (20 mins)
If pupils manage to complete the Limited Blocks levels, ask them to look at Blockly Brain Teasers. These are even more challenging and you might find that your pupils get stuck and need some hints!
Share and Review (5 mins)
Discuss what methods pupils used when they got stuck on a level and ask them to illustrate any level they found particularly challenging.
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