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.
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
Develop a deep understanding of decimal place value, powers of 10, and comparing, ordering, and rounding decimals with this complete 5th grade guided math mini-unit. This mini-unit is part of a comprehensive 5th Grade Place Value & Operations Unit and includes 7 complete lessons designed for whole group instruction, small group practice, independent work, and assessment. Mini-Unit 1 Includes:• Lesson 1: Reading & Writing Decimals • Lesson 2: Place Value Relationships • Lesson 3: Powers of
Develop a deep understanding of decimal operations, including addition, subtraction, multiplication, and division, with this complete 5th grade guided math mini-unit. This mini-unit is part of a comprehensive 5th Grade Place Value & Operations Unit and includes 4 complete lessons designed for whole group instruction, small group practice, independent work, and assessment. Mini-Unit 3 Includes:Lesson 1: Adding DecimalsLesson 2: Subtracting DecimalsLesson 3: Multiply DecimalsLesson 4: Multiply
Review 4th Grade Measurement Word Problems with our interactive Google Slides! While working through these interactive geometry slides, students will practice: ✔️ Solving multi-step word problems involving distance, time, volume, mass, and money ✔️ Using the four operations to reason through real-world measurement situations ✔️ Interpreting and organizing information using tables and number line diagrams With 20 slides of engaging practice, you'll have plenty of ready-to-go activities for your
Develop a deep understanding of multi-digit multiplication and division, including estimation, strategies, and the standard algorithm, with this complete 5th grade guided math mini-unit. This mini-unit is part of a comprehensive 5th Grade Place Value & Operations Unit and includes 3 complete lessons designed for whole group instruction, small group practice, independent work, and assessment. Mini-Unit 2 Includes:• Lesson 1: Estimating Products • Lesson 2: Multiplying Multi-Digit Whole Numb
Review and practice dividing decimals with this engaging 5th grade math lesson. Students use place value reasoning, estimation, and multiple strategies to divide decimals and explain their thinking. They also use multiplication to check their work, building a deeper understanding of decimal operations. Designed for small group instruction, this lesson helps students understand how decimals impact quotients, use models to represent division, and apply efficient strategies to solve problems. W
Review and practice multiplying decimals with this engaging 5th grade math lesson. Students use place value reasoning, scaling, estimation, and multiple strategies to find products and analyze their accuracy. Designed for small group instruction, this lesson helps students understand how decimals affect the size of a product, choose efficient strategies, and explain their thinking. What's Included• 21 PowerPoint lesson slides for whole-class instruction • 1 Math mat for small-group guided
Review and practice ordering decimals with this engaging 5th grade math lesson. Students order decimals from least to greatest and greatest to least using place value strategies, number lines, and visual models. Designed for small group instruction, this lesson guides students through comparing decimals, analyzing place value, and explaining their reasoning using multiple strategies. What's Included• 19 PowerPoint lesson slides for whole-class instruction • 2 Math mats for small-group gui
Review and practice rounding decimals with this engaging 5th grade math lesson. Students round decimals to the nearest whole number, tenth, and hundredth using number lines, endpoints, midpoints, and place value strategies. Designed for small group instruction, this lesson helps students determine when to round up or round down, explain their reasoning, and identify the most accurate estimate using visual models. What's Included• 19 PowerPoint lesson slides for whole-class instruction •
Download 3 FREE interactive, digital math slides today! These three presentations review place value for grades 3rd, 4th, and 5th. They are each a PowerPoint version of my Google Slides resources.
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Are you looking for quality, standards based math resources to use with Google Classroom™? This paperless GROWING BUNDLE is specifically made for fifth grade students to review all 5th grade common core math standards.
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Use this engaging 5th grade guided math lesson to teach students how to understand decimal place value relationshipsand how the value of a digit changes when it moves left or right in the place value chart. Students explore how multiplying and dividing by powers of 10 affects the value of decimals using place value charts and visual models. This complete lesson provides everything teachers need for guided math instruction, small group lessons, or whole-class teaching.What's Included• 21 Pow
Review and practice adding decimals with this engaging 5th grade math lesson. Students add decimals to the hundredths using place value strategies, estimation, partial sums, and the standard algorithm. Designed for small group instruction, this lesson helps students align place value correctly, regroup across decimal places, estimate sums, and explain their thinking. What's Included• 22 PowerPoint lesson slides for whole-class instruction • 2 Math mats for small-group guided math instruct
Review and practice subtracting decimals with this engaging 5th grade math lesson. Students use place value understanding, estimation, the standard algorithm, and addition to check subtraction to solve problems and determine if their answers are reasonable. Designed for small group instruction, this lesson helps students align decimals, regroup across place values, use addition to verify subtraction, analyze estimates, and explain their thinking.What's Included• 18 PowerPoint lesson slides f
Use this engaging 5th grade guided math lesson to teach students how to read, write, and represent decimals to the thousandths using base-10 models, place value charts, and number lines. Students practice identifying decimal place value while working with standard form, word form, and expanded form. This complete lesson provides everything teachers need for guided math instruction, small group lessons, or whole-class teaching. What's Included• 20 PowerPoint lesson slides for whole-class inst
Review and practice comparing decimals to the thousandths place with this engaging 5th grade guided math lesson. Students analyze decimal place value and determine whether numbers are greater than, less than, or equal using a variety of comparison strategies. This lesson incorporates place value charts, decimal models, number lines, and task cards to support conceptual understanding while reinforcing decimal comparison and place value reasoning. What's Included• 18 PowerPoint lesson slid
Use this engaging 5th grade guided math lesson to teach students how powers of 10 and exponents affect the value of numbers. Students explore patterns in powers of 10 and learn how multiplying and dividing by powers of 10 changes place value and shifts the position of digits in a number. Through visual models, place value reasoning, and structured practice, students learn how exponents represent repeated multiplication and how powers of 10 can be used to efficiently solve problems. What's Inc
Review and practice decimal place value with this engaging 5th grade guided math lesson. Students work with decimal numbers up to the thousandths place and represent numbers in standard form, word form, expanded form, and unit form while using place value charts and visual models. This lesson is designed for small group instruction, allowing teachers to guide students through place value concepts while students build numbers and analyze the value of digits in each place. Students practice c
This FREE 5th grade decimal operations quiz provides targeted practice with adding, subtracting, multiplying, and dividing decimals. Use it as a quick assessment, review activity, or test prep to check student understanding. This resource is part of:5th Grade Place Value Unit – Mini-Unit 3: Operations with DecimalsThis quiz aligns directly to the skills taught in Mini-Unit 3 and works well as a quick check or assessment. Skills Covered:• Adding decimals • Subtracting decimals • Multiplying de
This FREE 5th grade decimal place value quiz provides targeted practice with reading, writing, and comparing decimals. Use it as a quick assessment, review activity, or test prep to check student understanding. This resource is part of:5th Grade Place Value Unit – Mini-Unit 1: Understanding Decimals and Place ValueThis quiz aligns directly to the skills taught in Mini-Unit 1 and works well as a quick check or assessment. Skills Covered:• Reading and writing decimals • Expanded form with decim
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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