Transformations of expressions containing square roots

1.

Today is 7th of September
Lesson rules:
• don't interrupt each other;
• listen to each other;
• help each other

2.

Lesson topic:Transformations of expressions containing square
roots.
Operations on irrational numbers
Learning objectives:
8Nc.03
understand what number can be obtained by adding and
multiplying irrational numbers;
Assessment criteria
Тhe student has achieved the learning goal if:
uses the properties of irrational numbers when performing
operations on them

3.

Terminology
преобразование
transformation
выражение
expression
сложение
addition
вычитание
subtraction
умножение
multiplication
деление
division
доказать
prove

4.

Mathematical chain
1) 2 ∙ 6 =
2) 12=
3) 2 3+ 5 3=
4) 7 3 ∙ 2 =
5) 14 3 — 10 3=
6) (4 3)² =
7) 48 + 33 =
8) 81 ∙ 2 =
9) 18=
10) 3 2 + 3 2=
11) 6 2 = √72
12) 72 ∙ 2 =

5.

Work in group: 10 мин
Find the domain of function.
1 group
2 group
3 group
Y=