1️⃣ Get into pairs with a 30cm ruler. 2️⃣ One person holds the ruler near 30cm mark and lets it hang vertically. 3️⃣ Other person places thumb and index finger on either side of 0cm mark without touching the ruler. Get ready to do a pinch catch! 🗣Audio only! 🗣 Blindfold the catcher and give them a countdown before dropping the ruler. 👀 Sight only! 👀 Without giving a countdown, drop the ruler unexpectedly for the catcher. 🗣 Both audio and sight 👀 Without a blindfold, give the catcher a countdown before dropping the ruler. Record your results in the table using text or the pens Post your work to your Seesaw journal. Leave a comment with your speed in milliseconds.
1cm = 50ms 2cm = 60ms 3cm = 70ms 4cm = 80ms 5cm = 90ms 6cm= 100ms 7cm = 120ms 8cm = 130ms 9cm = 140ms 10cm = 140ms 11cm = 150ms 12cm = 160ms 13cm = 160ms 14cm = 170ms 15cm = 170ms 16cm = 180ms 17cm = 190ms 18cm = 190ms 19cm = 200ms 20cm = 200ms 21cm = 210ms 22cm = 210ms 23cm = 220ms 24cm = 220ms 25cm = 230ms 26cm = 230ms 27cm = 230ms 28cm = 240ms 29cm = 250ms 30cm = 250ms