Luis Armando Casso Echalar
Patient Math Tutor Who Makes Complex Topics Simple Through Visuals and Real-Life Examples
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Luis Armando Casso Echalar
Diploma degree
Luis Armando - Know your tutor
My name is Luis Casso, students can call me Lucho. I've been an unofficial tutor for three years already, and my passion lies in teaching mathematics to anyone who needs help. I helped students from various academic levels, ranging from the last year of high school to undergraduate college students. I can help with any topic up to Calculus I, and I will find time for teaching and making sure that every student who requires my help finds all the sources they need. As a math major student, I got to understand how maths could be harder for any student and how that made every high school student to have some sort of rejection towards the topic, but I personally wanted to become a math teacher because I think that everyone can learn math, and math can be used to teach not only as a school subject, but a way to understand the world and how it works. That is why teaching is my passion.
Luis Armando graduated from American International School of Bolivia
Class overview
My teaching style goes hand in hand with making sure students understand the why behind things. Every formula has a reason to exist, and students need to grasp the logical process behind the terminology for a more solid kind of learning — rather than just memorizing formulas they’ll likely forget. I’m very patient and interactive when teaching, and I always try to go at a pace that students find comfortable. The topics I can teach are varied in content, and I find it easy to identify areas of mathematics that require specific logical processes. At the same time, I can teach different strategies and tricks so that students learn through mnemonic devices or visual examples — helping them understand how to approach any exercise or problem they encounter. I have experience working with several students and have been able to connect with them in different ways to help them understand the problems presented. Once they become comfortable with the concepts, they reach the solutions much more quickly.
Specialities of your tutor
Test Strategy
Problem Solving
Math Tricks and Hacks
Learning Plans
Test prep strategies
Mathematics concepts taught by Luis Armando
The Student and Tutor practiced percentage calculations, including finding the 100% of a number given a percentage and determining what percentage one number is of another. They also worked through word problems involving percentage calculations and discussed the importance of understanding what the question is asking for. The Student and Tutor scheduled future sessions leading up to the Student's test.
Finding the 100% When Given a Percentage
Calculating a Percentage of a Number
Problem Solving: Multi-Step Percentage Problems
Dividing by Powers of 10 (10
100
1000)
Recognizing Repeating Decimals
Converting Decimals: Adjusting to Whole Numbers
The Student and Tutor focused on learning about percentages and methods for calculating them, including the 'rule of three'. The Student practiced converting word problems into equations and using proportions to solve for unknown values. The Tutor recommended focusing on time management during the test in addition to accuracy.
Percentages as Fractions
Rule of Three (Proportions)
Solving for 'x'
Dividing by Powers of 10
Dividing Fractions
Percentages Greater Than 100%
The Student and Tutor reviewed first and second derivative tests to determine concavity, inflection points, maxima, and minima. They worked through problems requiring product, chain, and quotient rules. The session ended by starting a new problem which they will continue in the next class, with the Tutor promising to send notes from the class.
Second Derivative Test
Concave Up and Concave Down
Inflection Points
Quotient Rule
Chain Rule
Product Rule
First Derivative Test
The session focused on using first and second derivatives to analyze and sketch graphs of functions. The Student practiced finding critical points, determining concavity, and sketching a cubic function using derivative information. The session concluded with a brief explanation of limits at infinity and how they relate to functions like 1/x.
Sketching Graphs with Derivatives
Limits at Infinity
Inflection Points
Second Derivative Test for Local Extrema
Second Derivative and Concavity
Finding Critical Points
First Derivative and Graph Behavior
The Student and Tutor reviewed the application of derivatives to find absolute maximum and minimum values of functions, including quadratic and trigonometric functions. The session included practice problems involving the extreme value theorem and critical points. The Tutor explained the derivatives of sine and cosine functions and related trigonometric concepts.
Critical Points
Function Shapes and Derivatives
Derivatives of Trigonometric Functions
Radians and the Unit Circle
Extreme Value Theorem
The session focused on solving related rates problems, including scenarios involving boats moving at different speeds and a ladder sliding down a wall. The student practiced applying differentiation techniques to find rates of change and also reviewed linearization methods. The tutor recommended focusing on geometric formulas and visualizing problems to improve problem-solving skills.
Related Rates
Implicit Differentiation with Respect to Time
Geometric Formulas in Related Rates
Problem-Solving Strategy: Visualizing the Problem
Linearization and Approximation
Luis Armando also teaches
Elementary School Math
Geometry
High School Math
Middle School Math
Probability
Trigonometry
Teaching tools used by tutor
Graphing Tools
Lesson Planner
Practice worksheets
Solvers & Calculators
Digital whiteboard
Student types for classes
Mathematics for Beginners
Anxiety or Stress Disorders
Home schooled
Middle School students
Elementary School students
College students
High School students
Interactive lessons
Pets are welcomed
Record lessons
Parent feedback
Note taking
Mobile joining
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Every tutor is interviewed and selected for subject expertise and teaching skill.
