數學：學習 20 以內加法和減法的有趣策略！ （柔性）

This is a FLEXIBLE SCHEDULE class with NO live meetings. It is similar to the live class but is meant for learners to engage with the teacher, classmates, and class content during a 4-week flexible schedule period using the Outschool Classroom. This class is designed for learners who cannot participate in the scheduled live classes or learners who may be uncomfortable or unfamiliar with the live version of the class.

A note about course interactions:
All class discussions will take place in the Outschool Classroom. And, pre-recorded instructional videos, activities, handouts, and assignments will all be available in the Outschool Classroom. Each weekly lesson will include the following: (1) a recorded video with step-by-step instructions for using a variety of addition and subtraction strategies, (2) a discussion component in which learners will engage with each other and with the teacher, (3) handouts with strategies and additional information, and (4) an assignment to complete before moving on to the next lesson. Learners will interact with each other and with the teacher through guided weekly discussions. The teacher will also provide weekly assignment feedback to learners and respond to questions or concerns.

Learners will build fluency with addition and subtraction of numbers within 20 through fun activities that incorporate a variety of strategies. These strategies include manipulatives, drawing and visualization, ten frames, number lines, and instructional games. The intent of this course is to give learners a variety of tools and the practice they need to build fluency and confidence in addition and subtraction within 20. Learners will need to have available small counting objects (counters, cereal, Legos, etc.) and playdough. Learners will need to print handouts as they engage in the class. The class will be interactive and engaging, with learners communicating with each other and with the teacher. Parents are invited and encouraged to participate.

This class is appropriate for advanced young learners (ages 4-5), first graders (ages 6-7), and older students who would benefit from a review of addition and subtraction strategies within 20. 

Week 1: addition within 20
Week 2: subtraction within 20
Week 3: fact families
Week 4: word problems