二年級：迷你數學謎題

Does your learner like to solve fun mysteries? Well, let them put on their detective hat and get to work using their 2nd grade math skills! Mini Math Mysteries are a fun 'game-like' activity to practice 2nd grade math skills. They follow a simple elimination structure where learners will be using the answers to the math questions to eliminate possibilities. This is an ongoing class, so you are free to join in and leave as you please. 

At the beginning of each class, learners will hear a short story to preface the mystery they will be solving for the day. Then, it is time for our math detectives to get to work! Learners will answer a variety of questions based on 2nd grade content to solve the mystery. They will fist solve the math questions, and then they will look for their answers in the boxes and eliminate the boxes with a matching answer on our shared screen. After answering all questions, only one image will remain (that image will contain a number that didn't match any of the answers to the questions) and that box is the solution to our mystery! 

Some of the math concepts we will be working on include:
-Addition with Regrouping
-Missing Addends 
-Adding Multiples of Ten
-Missing Subtrahends
-Word Problems (Addition and Subtraction)
-Addition within 20 (Questions and Word Problems)
-Subtraction within 20 (Questions and Word Problems)
-Comparing Numbers (up to 100) – Circle the Greatest/Least
-Place Value of the Underlined Digit (Tens & Ones Only)
-Mentally Add Ten (numbers up to 100)
-Mentally Subtract Ten (numbers up to 100)
-Read and Write Time (O’Clock and Half-Past Only)
-Adding double-digit numbers – No regrouping (Questions and Word Problems)
-Subtracting double-digit numbers – No regrouping (Questions and Word Problems)
-Place Value Models - Base Ten Blocks (Hundreds, Tens, and Ones)
-Missing Addends up to 30
-Missing Numbers in Skip-Counting Sequences (2s, 5s, and 10s)
-Mix of Addition & Subtraction (within 100, no regrouping)
-Addition within 100 with regrouping (Questions and Word Problems)
-Subtraction within 100 with regrouping (Questions and Word Problems)
-Adding three addends
-10/100 More or Less (Missing Numbers)
-Read & Interpret Picture Graphs
-Read & Interpret A Bar Graph
-Comparing Numbers up to 1,000
-Missing Addends to 20 (Questions and Word Problems)
-Numbers written in words up to 1,000 (write the numeral)
-Place Value Hundreds, Tens & Ones (Expanded Form, Models)
-Skip Counting by 5s and 10s
-Read and Write Time (O'clock & Half-Past only)



Week of December 2: Case of the Selfish Elf (Place Value- Hundreds, Tens, and Ones)
Week of December 9: Case of the Christmas Chaos (Addition and Subtraction/Some Word Problems)
Week of December 16: Case of the Cookie Crook (Addition and Subtraction with NO Regrouping)
Week of December 23: NO CLASS!!!
Week of December 30: Case of the Smashed Snowman (Subtraction- Some Regrouping)
Week of January 6: Case of the Penguin Problem (Comparing Numbers)
Week of January 13: Case of the Snowball Snatcher (Telling Time on Analog Clock)
Week of January 20: Case of the Invisible Igloo (Place Value Models)
Week of January 27: Case of the Blizzard Break-In (Missing Addends)
Week of February 3: Case of the Stole Pearls (100 More/100 Less)
Week of February 10: Case of the Secret Valentine (Addition to 1,000)
Week of February 17: Case of the Heartbroken Heroes (Subtraction within 1,000)
Week of February 24: Case of the Vanishing Valentines (Adding 4 2-Digit Numbers)


I look forward to meeting your learner in class! Now, let's have FUN learning math!! See you in the classroom! :)