Mariela Santillana is a curriculum designer and the founder of Math Tech Connections. She is a former classroom teacher who is passionate about creating engaging, standards-aligned resources for grades 1–6.
This self-checking Division Math Fluency Activity was made using Google Sheets. An Excel version is also included. There are 2 versions of the math activity, so you can differentiate as needed. ★ INCLUDED Two pages are included in this resource.Level 1: Divide 3-digit dividends by 1-digit divisors and Divide 4-digit dividends by 1-digit divisors Level 2: Divide 4-digit dividends by 1-digit divisors and Divide 4-digit dividends by 2-digit divisors *EXCEL VERSION ★ HOW IT WORKSThis math fluency
This self-checking Multi-Digit Multiplication Math Fluency Activity was made using Google Sheets. An Excel version is also included. There are 2 versions of the math activity, so you can differentiate as needed. ★ INCLUDED Two pages are included in this resource.Level 1: Multiply 1 digit x 2 digits, 1 digit x 3 digits, and 1 digit x 4 digits Level 2: Multiply 1 digit x 3 digits, 1 digit x 4 digits, and 2 digits x 2 digits *EXCEL VERSION ★ HOW IT WORKSThis math fluency activity is like a pape
The Addition & Subtraction Unit starts with instruction in addition strategies within 1,000 and moves through estimation, subtraction within 1,000, using addition to check subtraction solutions, analyzing vocabulary in word problems, and solving multi-step word problems using all four operations. Organized into 3 comprehensive Mini-Units, this unit has students actively build on their previous knowledge to truly master even the most rigorous types of problems. As always, they will practice wi
I’m so excited to share with you Unit 1 of our 3rd Grade Print & Digital Guided Math Curriculum! Save 40% when you purchase Unit 1. If you purchase individually, this unit has a value of $102. This unit includes 34 individual lessons with hands-on activities and independent practice - both print & digital. Each lesson includes the following : Mini-Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check und
This Multi-Step Word Problems Mini-unit includes both print & digital resources perfect for use with a guided math model. Lessons:3.1 Analyzing Word Problems3.2 Word Problems using Addition & Subtraction3.3 Word Problems using 4 OperationsLesson 3.1 starts with an analysis of vocabulary and language in word problems. Students are encouraged to get active, using manipulatives, visual models, and diagrams to demystify the process. Lesson 3.2 focuses only on multi-step word problems using diffe
This self-checking Multiplication Chart Math Fluency Activity was made using Google Sheets. An Excel version is also included. There are 2 versions of the math activity, so you can differentiate as needed. ★ INCLUDED Two pages are included in this resource.Level 1: Students fill in the chart up to x 10 Level 2: Students fill in the chart up to x 12 *EXCEL VERSION ★ HOW IT WORKSThis math fluency activity is like a paperless color by code activity. Students enter their answers in the answer co
This Multiplication Concepts Mini-unit includes both print & digital resources to help you guide your students virtually or in person to solid conceptual understanding of multiplication and its relationship to addition. Lessons Included:1.1 Repeated addition with arrays and equal groups1.2 Practice with equal groups1.3 Practice with arrays1.4 Jumps on a number lineEACH LESSON INCLUDES THE FOLLOWING:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including
This Multiplication and Division Strategies and Properties Mini-unit includes both print & digital resources. It is designed with guided math workshop in mind and includes the following: Lessons Included:5.1 Hands-on problem solving within 1005.2 Commutative property5.3 Associative property5.4 Distributive property5.5 Order of operationsEACH LESSON INCLUDES THE FOLLOWING:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and er
This Multiplication and Division Word Problems Mini-unit includes both print & digital resources. It is designed with guided math workshop in mind and includes the following: Lessons Included:6.1 Multiplication within 1006.2 Division within 1006.3 Problem Solving with Inverse Operations6.4 Mixed Multiplication & Division Word Problems6.5 2-Step word problems with Multiplication & DivisionEACH LESSON INCLUDES THE FOLLOWING:PowerPoint Lesson: Bright, engaging digital lessons introduce and model
This Factors, Multiples, Prime & Composite Numbers mini-unit includes both print & digital resources that will save you time as you plan your guided math lessons! Lessons:Lesson 1 - Factors and Divisibility Lesson 2 - Factors and Multiples Lesson 3 - Prime and Composite Numbers Each lesson includes the following:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check understanding. (editable text)Ma
This Division Concepts & Inverse Operations Mini-unit includes both print & digital resources. It is designed with guided math workshop in mind and includes the following: Lessons Included:3.1 Dividing into equal groups3.2 Repeated subtraction & number lines3.3 Inverse operations & fact families3.4 Dividing with RemaindersEACH LESSON INCLUDES THE FOLLOWING:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis ta
Develop a deep understanding of decimal place value and operations, including reading, writing, comparing, adding, subtracting, multiplying, and dividing decimals, with this complete 5th grade guided math unit. This comprehensive unit includes 3 mini-units and 14 complete lessons designed for whole group instruction, small group practice, independent work, and assessment. This Unit Includes:Mini-Unit 1: Understanding Decimals & Place Value• Lesson 1: Reading & Writing Decimals • Lesson 2: Pla
The 4th Graded Guided Math Multiplication & Division Curriculum is organized into 7 separate Mini-Units. Save 40% when you purchase Unit 1. If you purchase individually, this unit has a value of $69. Instruction starts with a review of multiplication & division facts, strategies, & properties. Instruction proceeds to include multiplying & dividing tens, hundreds, & thousands. Students will explore prime & composite numbers, factors & multiples, dividing with remainders, and how to interpret wo
This Multiplying 2x2 Digits mini-unit includes both print & digital resources that will save you time as you plan your guided math lessons! Lessons:Lesson 1 - Multiplying Multiples of 10 Lesson 2 - 2 x 2 Digit Multiplication using Distribution Lesson 3 - 2 x 2 Digit Multiplication using the Standard Algorithm Each lesson includes the following:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check
This Multiplication & Division Review Mini-unit includes both print & digital resources that will save you time as you plan your guided math lessons! Lessons:Lesson 1 - Equal groups, arrays, number lines Lesson 2 - Fact families Lesson 3 - Word problems and computation Lesson 4 - Number Patterns Each lesson includes the following:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check understandi
The 4th Graded Guided Math Addition and Subtraction Curriculum is organized into 4 separate Mini-Units. Save 30% when you purchase Unit 3. If you purchase individually, this unit will have a value of $36. ABOUT UNIT 3: Addition & SubtractionMini-Unit 1 Students will begin this unit using place value discs to build models of numbers, manually combining each place's 2 addends to find a sum. To wrap up the Mini-Unit, students will go through a rigorous lesson working with multi-step word problems
This Division Facts Mini-unit includes both print & digital resources. It is designed with guided math workshop in mind and includes the following: Lessons Included:4.1 Dividing with 1 & 04.2 Dividing by 2, 5, & 104.3 Dividing by 2, 3, & 44.4 Dividing by 3 & 64.5 Dividing by 4 & 84.6 Dividing by 7 & 9EACH LESSON INCLUDES THE FOLLOWING:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check understan
This Addition within 1,000 Mini-unit includes both print & digital resources perfect for use with a guided math model. Lessons:1.1 Strategies for Adding within 1,0001.2 Adding with the Standard Algorithm1.3 Adding with Regrouping1.4 Practice Adding & EstimatingLesson 1.1 focuses on making 10 or 100 to add, front-end and partial sums, and counting on. Lesson 1.2 teaches the standard algorithm as a 1-step alternative to other strategies and algorithms and provides plenty of practice regrouping
This Comparing with Multiplication and Division Mini-unit includes both print & digital resources that will save you time as you plan your guided math lessons! Lessons:Lesson 1 - Comparing with Multiplication and Division Lesson 2 - Multiplying 2-Digit x 1-Digit Numbers Lesson 3 - Dividing 2-Digit Numbers Each lesson includes the following:PowerPoint Lesson: Bright, engaging digital lessons introduce and model each concept, including interactive questions and error analysis tasks to check un
This Subtraction within 1,000 Mini-unit includes both print & digital resources perfect for use with a guided math model. Included Lessons:2.1 Strategies for Adding within 1,0002.2 Subtracting with the Standard Algorithm2.3 Subtracting with Regrouping2.4 Practice Subtracting & EstimatingLesson 2.1 introduces the strategies of compensation, partial differences, counting up, and counting back to subtract. Lesson 2.2 teaches the standard algorithm, including decomposing to regroup. Lesson 2.3 e
Mariela Santillana is a curriculum designer and the founder of Math Tech Connections. She is a former classroom teacher who is passionate about creating engaging, standards-aligned resources for grades 1–6.
My own education history
Bachelor's in Elementary Education from the University of Central Florida
Additional biographical information
I was born in Mexico but have lived in the USA since I was two years old. According to my mom, I have always wanted to be teacher. I currently live in Florida with my husband, 3 kids, 3 dogs, and 1 rabbit.
We have a very blessed life :)
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