Week 1
Lesson 1
The Case of the Apple Abductor
This lesson is about mastering addition within 20. Students will solve puzzles and word problems to uncover the mystery of disappearing apples, reinforcing their addition skills with larger numbers.
 Week 2
Lesson 2
The Case of the Harvest Hogger
This lesson is about developing subtraction skills within 20. Students will tackle intriguing word problems to discover the identity of the Harvest Hogger, enhancing their understanding of subtraction concepts with more complex numbers.
 Week 3
Lesson 3
The Case of the Fall Fires
This lesson is about comparing numbers up to 100 to find the greatest. Students will learn to identify the largest numbers as they investigate the cause of mysterious fall fires.
 Week 4
Lesson 4
The Case of Scarecrow's Straws
This lesson is about identifying the lowest numbers up to 100. Students will use comparison skills to solve the mystery of the missing straws, improving their ability to discern number values in various contexts.
 Week 5
Lesson 5
The Case of the Poisonous Pies
This lesson is about understanding the place value of digits in the tens and ones places. Students will uncover the creator of poisonous pies by solving problems that focus on place value.
 Week 6
Lesson 6
The Case of the Pilfered Pumpkins
This lesson is about mentally adding ten to numbers up to 100. Students will apply this skill to crack the case of the pilfered pumpkins.
 Week 7
Lesson 7
The Case of Leafy Lane
This lesson is about mentally subtracting ten from numbers up to 100. Students will use this skill to solve Leafy Lane’s colorful puzzles.
 Week 8
Lesson 8
The Case of The Turkey Kidnapper
This lesson is about using a mix of addition and subtraction within 20. Students will solve the mystery of the Turkey Kidnapper by applying their combined arithmetic skills.
 Week 9
Lesson 9
The Case of the Amazing Acorn
This lesson is about reading and writing time to the hour and half-hour. Students will use these skills to unveil the secret of the amazing acorn.
 Week 10
Lesson 10
The Case of the Falling Apples
This lesson is about solving mixed addition and subtraction problems within 15. Students will apply their full range of math skills to unravel the final mystery of falling apples.