Vocabulary and Learning
A brief history of numbers
tally /ˈtæli/ verb : to record and count or calculate (something) 计数
Roman /ˈroʊmən/ adjective : of or relating to Rome or the people of Rome 罗马的
numeral /ˈnjuːmərəl/ noun : a symbol that represents a number 数字
Roles for reading the Roman numerals:
1. When a symbol is followed by a smaller symbol or symbols, you add up their values.
For example: VII = 7; LX = 60; DX = 510.
2. When a symbol or symbols are followed by a larger-value symbol, you subtract their values.
For example: IV = 4; VL = 45; CDI = 401.
Exercise: write out 1 to 20 in Roman numerals
Grammar and Reading
Link to the textbook
Page 45: MY WORLD GEOGRAPHY CLASS
Music
Link to the music
National Geographic for Kids
Polar Bear
National Geographic for Kids
National Geographic
Polar Bears 101 | Nat Geo Wild
Polar Bear Mom and Cubs | National Geographic
Polar Bear vs. Ring Seal | National Geographic
Polar Bear Survival | Untamed Americas
EXCLUSIVE: Male Polar Bear Chases and Eats Cub | National Geographic
In the Mouth of a Polar Bear | Do or Die
TYPE: Mammals
DIET: Carnivores
HABITAT: Arctic
AVERAGE LIFE SPAN: 25 to 30 years
SIZE: Head and body, 7.25 to 8 ft; tail, 3 to 5 in
WEIGHT: 900 to 1,600 lbs
SPEED: 3.4 mph
Origami Art
Origami Lucky Star Tutorial
