7  CONCLUSIONS  
Digital technologies have allowed  the realization  of 
LDL during the first Italian lockdown, resulting in a 
massive use of such technologies for almost the entire 
school population over three months. On the one hand, 
the possibility of collecting and sharing information 
in  an  efficient  way  is  a  known  effect  of  digital 
technologies.  On  the  other  hand,  during  the  first 
lockdown  in  our  country,  the  widespread  use  of 
digital  technologies  has  become  constitutive  of  any 
didactical practices, generating a huge amount of data 
at the disposal of students and teachers. Despite the 
undeniable  difficulties  encountered,  this  period  will 
result in a wealth of experience on which teachers and 
students can decide to work, making the most of it. 
Within  this  work,  we  tried  to  shape  this  wealth  of 
experience using the construct of FA, that guides our 
eye as researcher in mathematics education and limits 
the  multiple  phenomena  we  observed  during  LDL. 
More precisely, we structured a theoretical tool based 
on  FA  theoretical  framework  in  order  to  link  FA 
indicators  to  spontaneous  teachers’  and  students’ 
actions and behaviours we observed. We found that 
the listed above 9 out of 72 indicators can be ensured 
simply  by  being  in  a  digital-technology  based 
environment  and  they  are  responsible  for  the  huge 
amount  of  didactical  data  that  can  be  managed. 
Nevertheless,  not  every  teacher  takes  advantage  of 
this  possibility in  the  same way,  some of  them feel 
overwhelmed  by  all  the  received  information.  One 
way to manage the increased workload could be the 
intentional use of FA construct in its entirety, and FA 
practices. For example, the use of S4 and S5 would 
allow  the  teacher  to  redistribute  workload  between 
her  and  the  students.  We  could  say  that  is  the 
management of the effect of the 9 indicators that led 
to the emerging of practices that could be associated 
with the FA construct. We have evidence of at least 
one teacher whose spontaneous didactical agency can 
be described using more than half of the FA indicators, 
widespread along with the five FA strategies and we 
believe that other  teachers can take  advantage from 
this  work.  Indeed,  every  teacher  that  implemented 
asynchronous  practices,  or  that  recorded  her 
synchronous lessons during LDL, has at her disposal 
a huge amount of data of the same kind we analysed 
about  her  didactical  practices,  and  can  eventually 
analyse  them  herself.  Moreover,  professional 
development on FA from now on could work not only 
on  shared  experiences  and  individual  practices,  but 
also in the direction of a decreasing of the workload 
thanks to intentional use of FA from the teachers’ side. 
As we show in the analysis of classroom observation, 
some  peculiarities  of  such  environment  impact  the 
deepest feature of human interaction, for instance, we 
can refer to the storage and access to data introduced 
in section 6.  Thus, another direction seems to be of 
high  relevance  within  the  context  of  digital-
technology  based  environment:  the  study  of  the 
specific instantiations of known theoretical constructs 
of mathematics education.   
REFERENCES  
Black, P., & Wiliam, D. (2009). Developing the theory of 
formative  assessment.  Educational Assessment, 
Evaluation and Accountability, 21(1), 5–31.  
Bolondi,  G.,  Ferretti,  F.,  Gimigliano,  A.,  Lovece,  S.,  & 
Vannini, I. (2016). The Use of Videos in the Training 
of  Math  Teachers:  Formative  Assessment  in  Math. 
Integrating Video into Pre-Service and In-Service 
Teacher Training, 128.  
Del  Zozzo,  A.,  Garzetti,  M.,  Santi,  G.  (2020).  Shaping 
digital  deconstruction:  teaching  and  learning  of 
Mathematics  during  the  lockdown.  Magister,  32(1), 
Sección  Extraordinaria,  pp.  78-86.  ISSN:  2340-4728 
https://doi.org/10.17811/msg.32.1.2020  
Ferretti, F., Michael-Chrysanthou, P., & Vannini, I. (2018). 
Formative assessment for mathematics teaching and 
learning: Teacher professional development research 
by videoanalysis methodologies. FrancoAngeli: Rome.  
Ferretti, F., Del Zozzo, A., & Santi, G. (2020). La didattica 
della matematica a distanza ai tempi del Covid-19 e la 
sua  interazione  con  l’identità  docente.  Annali online 
della Didattica e della Formazione Docente,  12(20), 
84-108.   
Gagatsis, A., Michael-Chrysanthou, P., Christodoulou, T., 
Iliada, E., Bolondi, G., Vannini, I., Ferretti, F., Sbaragli, 
S.  (2019).  Formative  assessment  in  the  teaching  and 
learning  of  mathematics:  Teachers’  and  students’ 
beliefs about mathematical error. Scientia Paedagogica 
Experimentalis, 56(2), pp. 145–180. 
Goody,  J.  (1977). The domestication of the savage mind. 
Cambridge: Cambridge University Press 
Landis, J. R., & Koch, G. G. (1977). The measurement of 
observer agreement for categorical data. Biometrics, 33, 
159-174.  
Leahy, S., Lyon, C., Thompson, M., & Wiliam, D. (2005). 
Classroom assessment: Minute-by minute and day-by-
day. Educational Leadership, 63(3), 18-24.  
Radford,  L.  (2010).  The  eye  as  a  theoretician:  Seeing 
structures in generalizing activities, For the Learning of 
Mathematics, 30(2), 2-7.  
Radford,  L.  (2008).  The  ethics  of  being  and  knowing: 
Towards a cultural theory of learning. In L. Radford, G. 
Schubring  &  F.  Seeger  (Eds.),  Semiotics in 
mathematics education: epistemology, history, 
classroom, and culture  (pp.  215-234).  Rotterdam: 
Sense Publishers.