Batch 2 - Class 81 - Spot it! Build your own

• (Mott - 32) Mysterious Computation. Professor Digit claims that 161+134+145=503. Further, he also claims that 2625 when divided by 52 gives a quotient of 36 and zero remainder. Is he nuts?

  Answer: The computations are being made in base 7 instead of base 10
• Ramanujan Challenge on Expii - awards for all who have attempted

• Explain kids the Spot it! game (home made version used here with 57 cards and 57 symbols) and let them play the game, and make observations
• Version 2: Give each kid a front card of their own to match the center card - do they always find a match, or are they stuck sometimes?
• Match 3: Turn up 9 cards face up. If you can find 3 cards with same symbol, call it out and you can take the three cards and replace with three new cards. Do you get stuck sometimes? Why/ Why not?
• Spot it Tic-tac-toe: Can you take 9 cards from the deck and arrange them into a tic-tac-toe so that all eight lines share a symbol across all three cards on the line?

  Number of symbols on each cardThe fact that there is exactly one symbol match from one card to nextHow many symbols can be there?How many cards can be there?
• Create our own deck - 2 symbols on each card

  Let kids create their own deck with two symbols on each cardSee if they get to "infinite solution"Why is this uninteresting? Lets define interesting as cases where there are at least two different matching symbols overallHow many cards should an interesting solution have?How many symbols do we need?
• Create our own deck - 3 symbols on each card

  Let kids create their own deck with three symbols per cardHow many symbols and how many cards do we need?Is there a method to do this?Is there a way to arrange these in a logical fashion?
• Create our own deck - 4 symbols on each card
• How many symbols and how many cards do we need? Is there a pattern to this?
• Is there a method? Is there a way to arrange these in a logical fashion?
• Does the method work for 5 symbols per card?
• Can we now arrange the full Spot it deck into a logical structure, so that it is easy to find all cards for any given symbol?

• Leaderboard challenge on https://www.expii.com/ramanujan