LESSON PLAN
1
UNIT: Natural numbers
LESSON 2: Mixed operations
LEVEL : 1st ESO
TIMING: 4h
TRANSFERABLE SKILLS
Communicative skills
Linguistic and audiovisual
Methodological skills
Information handling and digital competence
Mathematical
Learning to learn
Personal skills
Autonomy, initiative and decision taking
AIMS
Cooperative learning
To build on prior knowledge about order of operations
To develop autonomy and speed when computing
TEACHING OBJECTIVES
CONTENT
Order of operations
Using brackets
Distributing rules
COGNITION
CULTURE
Help the learners to design an instrument
Mental calculation versus using calculators
and to explore its use in order to follow a
The arithmetic calculator
process
The scientific calculator
Enable learners to take decisions and justify
them
Improve learner autonomy in checking their
answers, finding their mistakes and
correcting them
COMMUNICATION
language OF learning
Key vocabulary and phrases
Marta Gallart i Rosas
language FOR learning
Asking questions
Comparing and contrasting
Describing a process
Justifying
language THROUGH learning
Record new words and expressions related
to the topic from peer explanations
INS La Roca del Vallès
LESSON PLAN
2
Reasoning
Modal verbs
LEARNING OUTCOMES
1. Instrument designed demonstrating order of operations
2. Exercises on order of operations done in pair work
3. Written description of the process with the steps followed
justified
4. Individual exercises on order of operations
5. Making up an exercise with at least 8 operations involved and
provide the correct answer in group work
6. Solution of the made up exercise provided by another group
7. Performance of the description of the process when solving
mixed operations on the interactive whiteboard
8. Mathematical dialogue
Marta Gallart i Rosas
CRITERIA OF ASSESSMENT
1. Organisation and clarity
2. Taught process followed properly and correctly
3. No steps or justification missing, correctness and clear meaning
4. Taught process followed properly and correctly
5. Correctness of the natural number provided as answer
6. Taught process followed properly and correctly
7. Correctness, clarity and proper use of the interactive whiteboard
8. Correctness in terms of the mathematical task and
comprehension in terms of the language
INS La Roca del Vallès
LESSON PLAN
Task
2.1
3
Grouping
Description
Groups of 4 Warming up
Board group game to memorize arithmetic basic vocabulary
Timing Resources/Materials
ICT
LOT
HOT
Assessment
DA/FA/SA
15'
Board games from
mental calculation file
HOT
FA
2.2
Pairs
Tricky computing
Filling in table with answers to exercises and questions
10'
ppttrickycalculations
ICT
LOT
DA
2.3
Pairs
Discussing our findings
Comparing and contrasting exercises
35'
ppttrickycalculations
ICT
LOT
HOT
FA
2.4
Individual
LOT
SA
2.5
Pairs
Exercises on order of operations
A problem solving activity, a provided example with an
explicit process and different options to choose for
practising according to level
30'
ppttrickycalculations
ICT
Computer+interactive
whiteboard ICT
interactive exercises
from
http://amby.com/educ
ate/ord-op/
with Instructions1 file
Order of Operations
Worksheets file
LOT
HOT
FA
2.6
Pairs
Describing a process and justifying the steps followed
The focus is on describing and justifying the decisions taken
when doing an exercise on order of operations
30'
Grid 2
HOT
SA
2.7
Individual
Order of Operations
Worksheets file
LOT
HOT
SA
HOT
SA
2.8
Homework. Making a CRIB
The CRIB is thought to help students when computing
mixed operations
Homework exercises
Set of exercises
Groups of 4 Making up an exercise with at least 8 operations
involved
Marta Gallart i Rosas
30'
INS La Roca del Vallès
LESSON PLAN
4
One group of students provide the exercise and the correct
answer to another group of students who must solve it
2.9
2,10
Groups of 4 Describing a process on order of operations on the
interactive whiteboard
Each group performs exercises which are assessed by
other groups
50'
Groups of 4 Is it worth to know the distributing rules?
Discussion about advantages and disadvantages of using
the distributing rules
40'
Marta Gallart i Rosas
Computer+interactive
whiteboard ICT
Grid 3
Presentation cards2
Assessment table 2
HOT
SA
LOT
SA
Computer ICT
www.mathwords.com
HOT
FA
INS La Roca del Vallès