This product is part of a series that double as digital lessons for the concept development portion of the Engage New York Eureka lessons and also has interactive Google slides for student practice. Join the Math Detectives as they solve number mysteries today at a birthday party for twins! The focus of this lesson is finding equal number sentences.

The students will learn to use their critical thinking skills based on their fluency of known facts to construct number sentences as well as understand the meaning of the equal sign. When identifying two equal parts by adding each side, students will visually see and understand the true meaning of equal amounts. Using eye-catching visual scenes, the number detectives go step by step in the lesson portion of this product to solve their mystery of solving each quantity to determine if it shows equal amounts. They are at twins Millie and Lillie's birthday party. Millie and Lillie like to have the same amount of everything.
The detectives examine if they have equal addition sums for party guests, presents, balloons, and cake and ice cream. Each scene in the digital lesson portion of this product demonstrates each of the strategies learned to solve for the unknown. Following the lesson are independent slides. This product promotes independence by following the model "I do, we do, you do" for gradual release of responsibility for students to become independent in mastering this objective. PLEASE NOTE: The lesson portion is to be displayed in present mode.

This product has interactive Google slides for independent or small group practice after the whole group lesson to be shared on your interactive whiteboard or other screen and the practice portion can be assigned in Google Classroom or Seesaw (this portion is interactive only when in edit mode but can be presented in present mode and annotated using Smartboard tools or Zoom annotation tools if using them as guided practice done together). This lesson supports CCSS Operations and Algebraic Thinking, particularly CCSS.1.OA.7. It is designed for early first grade (more specifically it is aligned with Module 1 Lesson 17 of Eureka) but can also be used for second half of kindergarten to address operations and algebraic thinking standards.

The slides are designed to appear as though you are looking through binoculars, using a camera to take photos, using a flashlight, and taking notes on a notepad - just like a real detective hunting for number clues! This lesson will help them conceptualize fluency as well as improve their accuracy in addition and subtraction by determining if equations are true or false. The scenes in this product presents a storyline similar to word problems and promotes problem-solving skills and is designed to promote student discourse and discussion to learn to explain their mathematical thinking.

Use this lesson as whole group shared on your Interactive whiteboard in the classroom, share on your screen on Google Meet or Zoom for distant learning, or displayed for a small group lesson. Remember, use the lesson portion in present mode! Each slide is annotated with dialogue in speech bubbles to guide your lesson, but feel free to make it your own! These lessons cover the Concept Development portion of Eureka lessons, serve as an engaging visual lesson for your students, all while making it no-prep for you as the teacher! Each slide is designed to serve as a foundation for which math discourse in the classroom can build and grow!

After the lesson are 20 independent slides for students. You can assign these slides in Google Classroom or on Seesaw (or any other program that supports Google slide products). Simply hold "ctrl" to select the slides you want to assign, go to file and make a copy. From there you can assign as you normally would on your preferred digital platform. These slides are interactive when in edit mode only! These slides are great as a supplement for the Problem Set in Eureka, independent practice, homework, or for virtual math centers.

If you have any questions, please feel free to ask here or you can email me (see my TOU below for contact information).

Thank you for considering this product to add to your virtual resources. Please leave feedback and follow my store if you enjoyed this! You can also visit my store by clicking here. I am working on a series of products similar to this one and will be loading many of them to my store this summer of 2021. Below are the first 16 lessons or topics available as bundles, which are available now:

Topic A Module 1

Topic B Module 1

Topic C Module 1

Topic D Module 1

So check on back - or better yet, click "follow" next to the green star and you will be the first to be notified as soon as my new products are ready and also for any sales! On my store, Making Virtual Learning Fun, you will find many resources for all of your K-3 needs! Interactive Google slides like this, Boom Cards, virtual rooms, and more! By leaving feedback, you will receive points that can be redeemed for future purchases on any product on Teachers Pay Teachers! Please review my TOU here and contact me with any questions!

Resources on TPT are licensed for individual use. Individual Licenses are non-transferable and may not be used by or reallocated to a different educator. Your license doesn’t cover use by another friend or colleague. 

If you want to share a resource for others to use, you can buy additional licenses. On TpT, additional licenses are often priced at a discount. Discounts are set by the Seller, but the default discount is 10% off the original list price. 

If you know that you’ll need more than one license when you’re purchasing, you can select the number of teachers that will be using the resource on the product page before adding to your cart. You can also adjust the license amount from your cart before you check out. Thanks again! Happy Teaching!