以色列sabimama民宿

三角形、正方形、梯形、五邊形、六邊形....等等的幾何圖形，用英文如何表達呢?

4th grade math- points, lines and planes
https://www.youtube.com/watch?v=8ZkQg0PwHOQ

Teaching Geometry - Learning Lines and Angles
https://www.youtube.com/watch?v=THhMqLWdcV8

Geometry Part 1
https://www.youtube.com/watch?v=wey2uqsrzyw

Geometry Lesson 2
https://www.youtube.com/watch?v=cNLVhkFAb6g

Categorizing geometric shapes: practice examples | 4th grade | Khan Academy
https://www.youtube.com/watch?v=PiQxA9O7Rd8

Recognizing shapes | Geometry | Early Math | Khan Academy
https://www.youtube.com/watch?v=10dTx1Zy_4w

4.14 properties of 2D shapes - Basic Maths Core skills level 4
https://www.youtube.com/watch?v=xBebTV679Ug

Names of 2D shapes
https://www.youtube.com/watch?v=RY9Q1RG-h4g

All About Shapes
https://www.youtube.com/watch?v=737-AIEC0rA

Make New Figures - Two Dimensional / 2D Shapes from Learning Adventures
https://www.youtube.com/watch?v=RpW3tjWUZi8

Introduction to 2D shape properties
https://www.youtube.com/watch?v=TnRl7-rhmfI

Quadrilaterals
https://www.youtube.com/watch?v=_wfTsmmteVE

Quadrilaterals and their properties 
https://www.youtube.com/watch?v=udS3nkj2cfg

5.12 Properties of Quadrilaterals and Triangles -   Basic Maths GCSE Core Skills Level 5 & Grade E
https://www.youtube.com/watch?v=32duUtbuTo8

Grade 5 Math #11.3, Quadrilaterals, Rectangle, Square, Parallelogram, Rhombus, Trapezoid
https://www.youtube.com/watch?v=L9iRHE362dM

GOHMATH: Quadrilaterals ~ Early Childhood MTEL 02 Practice Test #60 ~ GOHmath.com
https://www.youtube.com/watch?v=tsCsA0qmkdc

GOHMATH: Polygons ~ Early Childhood MTEL 02 Practice Test #61 ~ GOHmath.com
https://www.youtube.com/watch?v=kdUCWIDCltc

Grade 5 Math Lesson on Describing shapes
https://www.youtube.com/watch?v=jrvLNOsgdVg

Grade 5 Math Lesson on Investigating Quadrilaterals 
https://www.youtube.com/watch?v=fGu4IdZCpo8
https://www.youtube.com/watch?v=3k8y4zrFIjw