Is Goblins free for teachers?

Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

Yes. Goblins uses a purpose-trained AI model that evaluates cheating signals in real time. It can detect when students are copying answers, using external tools inappropriately, or not genuinely working through problems. Copy-pasting answers is also blocked.

Can I use my own voice with Goblins?

Yes. Teachers can record their voice and take a selfie to create a custom 3D avatar in about 30 seconds. Students then hear help in their own teacher's voice and see a familiar face, making the experience more personal and effective.

What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

Yes. Goblins is FERPA and state compliant. Student data privacy and security are a top priority.

Does Goblins support English Language Learners?

Yes. Goblins supports 30+ languages so teachers don't have to translate every worksheet. It is especially helpful for ELL students who need accessible math instruction in their native language.

7.4

Apply and extend knowledge of operations of whole numbers, fractions, and decimals to add, subtract, multiply, and divide rational numbers including integers, signed fractions, and decimals.

7.4.aIdentify and explain situations where the sum of opposite quantities is 0 and opposite quantities are defined as additive inverses.7.4.bInterpret the sum of two or more rational numbers, by using a number line and in real-world contexts.7.4.cExplain subtraction of rational numbers as addition of additive inverses.7.4.dUse a number line to demonstrate that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.7.4.eExtend strategies of multiplication to rational numbers to develop rules for multiplying signed numbers, showing that the properties of the operations are preserved.7.4.fDivide integers and explain that division by zero is undefined. Interpret the quotient of integers (with a non-zero divisor) as a rational number.7.4.gConvert a rational number to a decimal using long division, explaining that the decimal form of a rational number terminates or eventually repeats.

Khan Academy Resources

Multiplying negative numbers review Subtracting negative numbers review Dividing negative numbers review Multiplying negative numbers Converting fractions to decimals Subtracting negative numbers Multiplying positive and negative fractions Exponents with negative fractional bases Adding & subtracting rational numbers Signs of sums Adding negative numbers on the number line Substitution with negative numbers Interpret negative number addition and subtraction expressions Order rational numbers Dividing mixed numbers with negatives Equivalent expressions with negative numbers Dividing negative numbers Adding & subtracting negative numbers Ordering negative number expressions Interpreting negative number statements Negative signs in fractions Signs of expressions challenge Signs of expressions Dividing positive and negative fractions Absolute value to find distance Multiplying & dividing negative numbers word problems Number equations & number lines Addition & subtraction: find the missing value One-step equations with negatives (add & subtract)Understand subtraction as adding the opposite Equivalent expressions with negative numbers (multiplication and division)Subtracting a negative = adding a positive Why a negative times a negative makes sense Adding numbers with different signs Adding fractions with different signs Adding negative numbers example Comparing rational numbers Worked example: Converting a fraction (7/8) to a decimal Multiplying positive & negative numbers Dividing positive and negative numbers Why a negative times a negative is a positive Fraction to decimal with rounding Fraction to decimal: 11/25 Sign of expressions challenge problems Adding negative numbers on the number line Absolute value as distance between numbers Interpreting absolute value as distance The 0 & 1st power Addition & subtraction: find the missing value (part 1 of 2)Substitution with negative numbers Adding & subtracting rational numbers: 0.79 - 4/3 - 1/2 + 150%Even & odd numbers of negatives Interpreting multiplication & division of negative numbers Negative signs in fractions Adding & subtracting rational numbers: 79% - 79.1 - 58 1/10 Multiplying positive and negative fractions Exponents with negative bases Interpreting numeric expressions example Dividing negative fractions Ordering expressions 1 and -1 to different powers Number equations & number lines Interpreting negative number statements Equivalent expressions with negative numbers (multiplication and division)Adding & subtracting negative numbers Equivalent expressions with negative numbers Adding & subtracting fractions Addition & subtraction: find the missing value (part 2 of 2)

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