30
Yes and no statements
Textbook pp. 70–71
GoalMake “yes” statements (“... is ...”) and “no” statements (“... is not ...”); find a thing from a description.
New words
yes statement, affirmation · tasdiqno statement, negation · inkoris not · emasdescription · ta’rif
Explanation
A yes statement says “yes” about a thing: “A pencil is a school tool.” A no statement says “no” and uses emas (not): “An apple is not a school tool.” By joining several yes and no statements we can find a thing exactly. A computer also makes choices through yes-or-no questions.
Worked examples
Yes: “A carrot is a vegetable.” No: “A carrot is not a fruit.”
Riddle: “It is not a circle, not a triangle, it has 4 equal sides.” Answer: a square.
Class activity
“Yes or no”: the teacher thinks of a thing. Children ask only yes/no questions (“Is it a fruit?”, “Is it red?”) and find it. They turn each answer into a yes or no sentence.
Practice
1
Make it a no statement: “A cat is a bird.”
A cat is not a bird
2
Which is the yes statement: “A pen is a school tool” or “A pen is not a toy”?
A pen is a school tool
3
Guess: it is not an animal, not a plant, it carries people from one city to another.
For example: a train or a bus