├───L1
| |____Unit 01, Glance at Scratch
| |____Unit 02, Bear Crossing Road
| |____Unit 03, Guess Who Am I
| |____Unit 04, Running Bear
| |____Unit 05, What Bears Eat
| |____Unit 06, Sphinx’s Asking
| |____Unit 07, Maze Adventure
| |____Unit 08, Changing Maze
| |____Unit 09, Let’s Draw
| |____Unit 10, Creative Competition
| |____Unit 11, Canyon Adventure
| |____Unit 12, Channel Racing
| |____Unit 13, Guess Number
| |____Unit 14, Mind Map
| |____Unit 15, Mental Calculation Tree
| |____Unit 16, Climbing Pole Competition
| |____Unit 17, Amazing Fireworks
| |____Unit 18, Birthday Card
| |____Unit 19, Music Picture Book
| |____Unit 20, Cartoon Book
| |____Unit 21, Symphony Concert
| |____Unit 22, Piano Concert
| |____Unit 23, Crazy Coins
| |____Unit 24, Catching Apples
├───L2
| |____Unit 01, Whack-A-Mole
| |____Unit 02, Magic Adventure
| |____Unit 03, Smashing Bricks
| |____Unit 04, Lion and Fire Ring
| |____Unit 05, Seal Game
| |____Unit 06, Monkey Catching Balloons
| |____Unit 07, Airplane war I
| |____Unit 08, Airplane war II
| |____Unit 09, Tidy up Classroom
| |____Unit 10, Origin of Oracle
| |____Unit 11, Ant Looking for Way Out
| |____Unit 12, Find Match
| |____Unit 13, Analog Clock
| |____Unit 14, Basketball Game
| |____Unit 15, Programming Art I
| |____Unit 16, Programming Art II
| |____Unit 17, World Map
| |____Unit 19, Greedy Snake
| |____Unit 20, Garbage Classification
| |____Unit 23, Overview
| |____Unit 24, Test
├───L3
| |____Unit 01, Tank War
| |____Unit 02, Olympic Rings
| |____Unit 03, Magnetic Pole
| |____Unit 04, Seeking Treasure in Island
| |____Unit 05, English Party
| |____Unit 06, Spread of Virus
| |____Unit 07, Monster Subjugation
| |____Unit 08, Shooting Number
| |____Unit 09, Shooting Target
| |____Unit 10, Safety in Summer Break
| |____Unit 11, Fishing Battle
| |____Unit 12, Spaceship Patrol
| |____Unit 13, Meteorite Crisis
| |____Unit 16, Rock Paper Shoot
| |____Unit 17, Gravity Game
| |____Unit 18, Subject-verb-object game
| |____Unit 19, Network Security
| |____Unit 20, Hurdle
| |____Unit 21, Spring Festival Card I
| |____Unit 22, Spring Festival Card II
| |____Unit 23, Cat Dog Battle I
| |____Unit 24, Cat Dog Battle II
|___L4
| |____Unit 01, 4 in 1 Game I
| |____Unit 02, 4 in 1 Game II
| |____Unit 03, Racing Car
| |____Unit 04, Solar System
| |____Unit 07, Flappy Bird
| |____Unit 08, Soccer Game
| |____Unit 09, Scratch Math I
| |____Unit 10, Scratch Math II
| |____Unit 11, Scratch Math III
| |____Unit 12, Scratch Math IV
| |____Unit 13, Color Square I
| |____Unit 14, Color Square II
| |____Unit 15, Sushi Getting Home I
| |____Unit 16, Sushi Getting Home II
| |____Unit 17, Multiple of 7 I
| |____Unit 18, Miltiple of 7 II
| |____Unit 19, BMI I
| |____Unit 20, BMI II
| |____Unit 21, Summer Battle I
| |____Unit 22, Summer Battle II
| |____Unit 23, Overview
| |____Unit 24, Test
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