AND needs both, OR needs one, and NOT flips true and false.
AND is true only when both parts are true. The door needs the key AND the code.
OR is true when at least one part is true. The bell rings for the front OR the side button.
NOT flips an answer, so true becomes false and false becomes true.
Programs use these three words to build big rules out of small checks.
These are some of the questions on the sets. The printable sheets have more and an answer key.
No. AND needs both parts to be true.
No. OR is false only when both parts are false.
Yes. NOT flips the not-bright answer into yes.
An OR rule. One reason is enough.
AND. Both parts are needed.
Ask a grown-up for three rules in your home that use and, or, or not. For example: you can have a snack if you ask and you wash your hands. Which word is each rule using?
Do the Mission: ask your child to find three rules in your home that use and, or, or not, like you can have a snack if you ask and you wash your hands. Which word is each rule using?
