diff --git a/Manifest.toml b/Manifest.toml
index 6697fc9..6c9ec2a 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -23,9 +23,9 @@ version = "0.8.6"
[[deps.Documenter]]
deps = ["ANSIColoredPrinters", "Base64", "Dates", "DocStringExtensions", "IOCapture", "InteractiveUtils", "JSON", "LibGit2", "Logging", "Markdown", "REPL", "Test", "Unicode"]
-git-tree-sha1 = "2c023382ab49c40475fcf59b90ba1c8edd9ff45e"
+git-tree-sha1 = "7d9a46421aef53cbd6b8ecc40c3dcbacbceaf40e"
uuid = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-version = "0.27.13"
+version = "0.27.15"
[[deps.IOCapture]]
deps = ["Logging", "Random"]
@@ -68,9 +68,9 @@ uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
[[deps.Parsers]]
deps = ["Dates"]
-git-tree-sha1 = "13468f237353112a01b2d6b32f3d0f80219944aa"
+git-tree-sha1 = "85b5da0fa43588c75bb1ff986493443f821c70b7"
uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
-version = "2.2.2"
+version = "2.2.3"
[[deps.Printf]]
deps = ["Unicode"]
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diff --git a/lessonsSources/00_-_INTRO_-_Introduction_julia_ml/0006-q01-quiz_modules_packages_environment.md b/lessonsSources/00_-_INTRO_-_Introduction_julia_ml/0006-q01-quiz_modules_packages_environment.md
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index 0000000..6f2af45
--- /dev/null
+++ b/lessonsSources/00_-_INTRO_-_Introduction_julia_ml/0006-q01-quiz_modules_packages_environment.md
@@ -0,0 +1,263 @@
+# Quiz 01.1 on Modules, packages and environments
+
+```@setup q0001
+cd(@__DIR__)
+using Pkg
+Pkg.activate(".")
+## Pkg.resolve()
+## Pkg.instantiate()
+using Random
+Random.seed!(123)
+using QuizQuestions
+```
+
+--------------------------------------------------------------------------------
+### Q1: What is printed ?
+
+Given a file `foo.jl` with the following code:
+```julia
+println("A - I am in foo.jl")
+
+module Foo
+
+println("B - I am in module Foo in foo.jl")
+export x
+
+const x=1
+const y=2
+z() = println("C - I am in a function of module Foo")
+end
+
+module Foo2
+
+println("D - I am in module Foo2 in foo.jl")
+export a
+
+const a=1
+const b=2
+c() = println("E - I am in a function of module Foo2")
+end
+```
+
+Which print statements will appear after running the command `include(foo.jl)` ?
+
+```@example q0001
+
+choices = [ # hide
+ "All statements from `A` to `E`", # hide
+ "No statements will be printed (e.g. due to an error)", # hide
+ "Statement `A` only", # hide
+ "Statements `A`, `B` and `D` only", # hide
+ "Statements `A`, `C` and `E` only", # hide
+ "Statements `B` and `D` only", # hide
+ ] # hide
+answers = [2] # hide
+multiq(choices, answers;) # hide
+
+```
+
+```@raw html
+RESOLUTION
+```
+The `include(foo.jl)` statement will lead to an error because there are no quotes around the filename. If the quotations would have been included it would have resulted in the statements `A`, `B` and `D`. Statements `C` and `E` are within function definition and would occur only when functions `z` or `c` would have been called.}
+
+The correct answer is:
+ - "No statements will be printed (e.g. due to an error)"
+```@raw html
+RESOLUTION
+```
+
+The `include("foo.jl")` statement evaluates the included content, but it doesn't yet bring it into scope. You can't yet refer directly to the objects of the `Foo` module, you need to use the qualified name as in command 3. `Foo` is a module, not a package, so command 4 will complain that it doesn't find the "package" `Foo`. After the module has been bring to scope we can refer to `x` directly as in command 6. Command 7, as we are using the qualified name, is indipenden than whether `z` was exported by `Foo` or not, and hence it works, and would have been worked even without the `using .Foo` of command 5.
+
+The correct answers are:
+ - "Command 3 returns the value `1`"
+ - "Command 4 returns an `ArgumentError: Package Foo not found in current path:`"
+ - "Command 6 returns the value `1`"
+
+```@raw html
+RESOLUTION
+```
+The given command results in a `UndefVarError: plusOne not defined`. Indeed even if `Foo2` is a submodule of `Foo`, it doesn't inherit the scope of parent modules. So its code can't find the 'plusOne' function. When in the REPL we run the command we are in the `Main` module. Adding `using .Foo` doesn't change anything, as the problem is in the scope of the `Foo2` module, not in those of the REPL (`Main` - and , of course, typing `using Foo` looks-up for the package `Foo`, not the module `Foo`, and would end in a `Package Foo not found` error. So what can we do? One solution is using in the `plusTwo` function the full path of the `plusOne` function: `plusTwo(x) = Main.Foo.plusOne(x)+1`. While this works, it may be a less portable solution, as it then requires module Foo to be a child of `Main`. Perhaps a better solution is to use a relative path and use the statement `using ..Foo` in module `Foo2` before the definition of `plusTwo` (trying to use a relative path directly in the function definition as in `plusTwo(x) = ..Foo.plusOne(x)+1` results in a parsing error)
+
+The correct answers are:
+ - The result is an error that we can avoid if the function `plusTwo` in module `Foo2` is defined as `plusTwo(x) = Main.Foo.plusOne(x)+1`
+ - The result is an error that we can avoid if in module `Foo2` the function `plusTwo` is preceded by the statement `using ..Foo`
+```@raw html
+RESOLUTION
+```
+ The function `plusTwo` needs to access a function on a sibling module. So the module `Foo2` must be retrieved by going up to one level with the two dots and then naming the module, i.e. `using ..Foo2` or using the full module path `using Main.Foo.Foo2`. `import` statemens alone will not work as the `plusThree` function call the `plusTwo` function using the unqualified name, without prefixing the module, so the `plusThree` function name need to be exported.
+
+The correct answers are:
+ - "`[XXXX]` should be `using Main.Foo.Foo2` for the function `plusThree` to work"
+ - "`[XXXX]` should be `using ..Foo2` for the function `plusThree` to work"
+```@raw html
+RESOLUTION
+```
+To provide replicable results, assuming a deterministic algorithm or one where the random seed generator has been fixed, we need to provide the input data, the source code and the 'Manifest.toml' file that describe the _exact_ version of all packages. The `Project.toml` file instead, when present, is used to describe in which conditions our scripts could be used (i.e. the _list_ and eventually _range_ of dependent packages), but not a _unique_ environment state. The information of the `Manifest.toml` (and, for Julia versions before 1.7, the Julia version itself, as this info was not encoded in the `Manifest.toml` file) is enougth, we don't need to provide the whole content of the user Julia folder.
+
+The correct answers are:
+ - "The input data of your analysis"
+ - "The full source code of the scripts you have used"
+ - "The file `Manifest.toml` of the environment where your code ran to produce the results"
+```@raw html
+RESOLUTION
+```
+
+The `Project.toml` file task is to indicate which is the set of packages that works with the given project, but not the concrete istance of the environment that is used in a project, that is the exact version of all directly and indirectly used packages. This is indeed the task of the `Manifest.toml` file.
+
+The correct answers are:
+ - "The name of the packages directly used in the project (julia scripts)"
+ - "The ID of the packages directly used in the project (julia scripts)"
+ - "The minimum and maximum version of the packages directly used in the project (julia scripts) that are compatible with the project"
+```@raw html
+RESOLUTION
+```
+The first command is a comment. On the second one, `a` is assigned the value `2`. The third one raises a syntax error as the equal operator expects a right and a left hand side, while here the right hand side is all commented out. Finally lines 4 to the end is a big nested comment. It results that after that commands have been run, `a` remains assigned to `2`.
+The correct answers are:
+- "`a` is now `2`"
+- "At least one of that commands raises a run-time error"
+```@raw html
+RESOLUTION
+```
+
+First, Unicode characters are allowed (with very rare exceptions) and identation doesn't matter in Julia. We would then be tempted to say hence that the broadcasted call `foo.(a)` produces `[4,9]` as output and `foo(a[1])` produces `4`. However the rising to the power is not obtained by using the Unicode `²` character, but using the exponential operator, i.e. `x^2`. `x²` is just an other idetifier name that has not been defined, so the function in all cases returns an error that `x²` is not defined.
+The correct answer is:
+ - "Calling the function produces a run-time error because `x²` is not defined"
+```@raw html
+