**Math 6A, Lesson 16, Spring 2017, 6/18/2017**

Final class of the year. Handed out final exam and report card for each student.

Congratulations to all my student a successful school year! Have a safe and wonderful summer!

zhenli Posted in Teaching Plan，

10
June
2017

**Math 6A, Lesson 15, Spring 2017, 6/11/2017**

Final Exam covers all the materials we have learned this semester: algebraic expression, solve equations, solve word problems using equations; rate and ratio; percentage and its applications; geometry.

zhenli Posted in Teaching Plan，

04
June
2017

**Math 6A, Lesson 14, Spring 2017, 6/4/2017**

**1. Classification of Triangles**

- The number of equal sides in the triangle:
**scalene triangle**– no equal sides;**isosceles triangle**– to equal sides;**equilateral triangles**– three equal sides - The type of angles of the triangle:
**acute-angled triangle**– all angles are acute;**right-angled triangle**– one of the angles is a right angle;**obtuse-angled triangle**– one of the angles is an obtuse angle - Is an equilateral triangle also an isosceles triangle?
- Is it Possible to draw a triangle with more than one obtuse angle?
- Can a scalene triangle be an acute-angled, right-angled or obtuse-angled triangle?
- All the three angles in a scalene triangle are different size
- The angles opposite the equal sides of an isosceles triangle are equal
- All the three angles in an equilateral triangle are equal in size

**2. Quadrilaterals**

- A closed plane figure with four straight sides joined by four vertices is called a
**quadrilateral** **Vertices**,**diagonals**- Properties of special quadrilaterals
**Parallelogram**: 2 pairs of parallel and equal opposite sides**Rectangle**: all angles are right angles**Rhombus**: all sides are equal, diagonals are perpendicular to each other**Square**: all sides are equal, all angles are right angles**Trapezoid**: 1 pair of parallel sides

**3. Review for final exam **

- Redo all quiz problems
- Review geometry materials we have learned so far

**4. Home Work:**

- Page 52-53: 24, 25, 26, 27
- Redo all quiz problems
- Final Exam next week on 6/11/2017. Ms. Lija Li will be monitoring the exam.
- Final class on 6/18/2017: review final exam, report card, and party. Please bring food/snacks to share.