Tally Marks: Counting Our Data

Learning Objectives Identify a tally mark. Draw single tally marks to count up to four. Draw a group of five tally marks correctly. Count objects using tally marks. Read the total number from a set of tally marks. Explain that tally marks help us collect data. How can we count our favorite toys super fast? 🤔 Let's be data detectives! We will learn a special way to count called tally marks. It helps us keep track of information, or data. This makes counting easy and fun! ✨ Real-World Applications Voting for a class pet 🐹 Counting different colored cars 🚗 Keeping score in a game ⚽ Picking a favorite snack 🍎

TermDefinitionExample DataData is information we collect. It can be numbers, words, or pictures.The number of sunny days this week is data. ☀️ CollectTo collect means to gather things together.We collect data by asking friends their favorite color. 🎨 Tally MarkA tally mark is a quick line we draw to count one thing.For one apple 🍎, we draw one line: | Group of FiveThis is a special bundle of tally marks. It makes counting by fives easy.For five cats 🐈, we draw four lines down and one across: |||| TotalThe total is how many you have all together.If you have ||| tally marks, the total is 3.

The One-to-One Rule | = 1 For every one thing you count, you draw one straight line down. The Group of Five Rule |||| When you count to five, the fifth line is special. It crosses over the first four lines.