BA 免费课程结束以后，大家反响很好，继续新加坡数学的免费课程，主要以challenge word problems 课本为主。

1年级教学大纲：

Lesson 1: Number bonds

Lesson 2: Addition and subtraction within 10

Lesson 3: Ordinal numbers

Lesson 4: Addition and subtraction within 20

Lesson 5: Shapes and patterns

Lesson 6: Length

Lesson 7: Graphs

Lesson 8: Addition and subtraction within 40

Lesson 9: Multiplication

Lesson 10: Division

Lesson 11: Time

Lesson 12: Addition and subtraction within 100

Lesson 13: Addition and subtraction with money

Lesson 14: Review

Teacher: Hannah Shu is a high school senior. She received a 5 on both the AP Calculus BC and AP English Language exams. She is a national merit finalist and national AP scholar, and she has experience tutoring elementary and middle school kids in English and math both for NHS and outside of school.

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4年级教学大纲：

Lesson 1: Whole Numbers

Lesson 2: Four Operations of Whole Numbers

Lesson 3: Mental Calculation, Operations on Fractions, Decimals

Lesson 4: Angles

Lesson 5: Perpendicular and Parallel Lines, Tiling Patterns and Symmetry

Lesson 6: Area and Perimeter

Lesson 7: Tables and Graphs

Lesson 8: Volume, Solid Figures

Lesson 9-10: Review

Teacher: Jamie

Jamie is a high school senior. She has received multiple 5's on a variety of AP exams, including Chemistry, Calculus, and English Language and Composition. Under NHS, she has tutored elementary to middle schoolers in basic mathematics and grammar. She is a board member of her high school's Eco Club and an avid creative writer. Additionally, she is a National Merit Finalist and a National AP Scholar.